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2844 races across 12 months · upcoming

January

1 Jan BAU Binnenalsterultra Trail trail 51.2km Hamburg, DEU 1 Jan Just Survive 125 Trail trail 200km / 124mi Hobe Sound, FL, USA 1 Jan Lake Travis New Years Trail Challenge Trail trail 100km / 62mi Marble Falls, TX, USA 1 Jan Lengericher Ultratrail am Neujahrstag Trail trail 46km Lengerich, DEU 1 Jan Red Eye 50km Trail trail 50km Triangle, VA, USA 2 Jan Dragon Vulture Ten Ascents Trail trail 53km Ningbo City, CHN 2 Jan Iron Horse Trail trail 50km Paris, USA 2 Jan Resolution Run Timed trail 50km Simpsonville, SC, USA 2 Jan Salem Lakeshore Frosty Fifty Trail trail 50km Winston-Salem, NC, USA 2 Jan Salem Lakeshore Frosty Fifty (early start) Trail trail 50km Winston-Salem, NC, USA 2 Jan TARC Yeti Trail Trot Trail trail 50km Hamilton, MA, USA 8 Jan Dizzy Horse A Winter Backyard Ultra Timed trail 50km Idaho Falls, Idaho, USA 9 Jan Avalon Benefit 50 Km Run Trail trail 50km Avalon, CA, USA 9 Jan Avalon Benefit 50 Mile Run Trail trail 80km Avalon, CA, USA 9 Jan Bandera 100 km Endurance Run Trail trail 100km / 62mi Bandera, TX, USA 9 Jan Bandera 50 km Endurance Run Trail trail 50km Bandera, TX, USA 9 Jan Country to Capital Trail trail 69km Wendover, GBR 9 Jan Frozen Sasquatch 50 km Trail Race Trail trail 50km Charleston, WV, USA 9 Jan Frozen: H3 - 50K Day/Night Run Trail trail 50km Bethera, SC, USA 9 Jan San Diego 50 Mile Trail Trail trail 80km Escondido, CA, USA 9 Jan San Tan Scramble 50K Trail trail 50km Queen Creek, AZ, USA 9 Jan Thailand 12H Timed trail 50km Samut Sakhon, THA 9 Jan Thailand 24H Timed trail 50km Samut Sakhon, THA 9 Jan Thailand 6H Timed trail 50km Samut Sakhon, THA 9 Jan The Great Scorpion Trail Run Trail trail 50km Meridian, MS, USA 9 Jan The Legacy Trail trail 50km Gastonia, NC, USA 10 Jan Atlanta Fat Ass 50K Trail trail 50km Lithia Springs, GA, USA 10 Jan Trail Hivernal Les Mathes - La Palmyre Trail trail 50km Les Mathes, FRA 16 Jan 8 Hours of Ode Race Timed trail 50km Holly, MI, USA 16 Jan Coldwater Rumble 100 Km Race Trail trail 100km / 62mi Goodyear, AZ, USA 16 Jan Coldwater Rumble 60K Race Trail trail 60km Goodyear, AZ, USA 16 Jan Cowboy Yeti Trail trail 100km / 62mi Bastrop, TX, USA 16 Jan Cretan Backyard Ultra Timed trail 50km Voros, Crete, GRC 16 Jan Ouachita Switchbacks 50K Trail trail 50km Big Cedar, OK, USA 16 Jan Snow Bull 12 Hour Endurance Runs Timed trail 50km Whitwell, TN, USA 16 Jan Snow Bull 6 Hour Endurance Run Timed trail 50km Whitwell, TN, USA 16 Jan Southern Tour 50 Mile Ultra Race Trail trail 80km Wilmington, NC, USA 16 Jan Southern Tour 50 km Ultra Race Trail trail 50km Wilmington, NC, USA 16 Jan The Shippey 40mi Endurance Runs Trail trail 64km High Ridge, MO, USA 16 Jan The Shippey 50km Endurance Runs Trail trail 50km High Ridge, MO, USA 17 Jan Big Bend Ultra Trail trail 100km / 62mi Lajitas, TX, USA 17 Jan Crystal Springs 50 km Winter Trail Run Trail trail 50km Woodside, CA, USA 17 Jan Waterfall 50km Trail trail 50km Stanley, VA, USA 22 Jan Zamieć 12 h Timed trail 50km Szczyrk, POL 22 Jan Zamieć 24 h Timed trail 50km Szczyrk, POL 22 Jan Zamieć 6h Timed trail 50km Szczyrk, POL 23 Jan Alamo City Ultra Trail trail 50km San Antonio, TX, USA 23 Jan Cactus Roulette Endurance - 12h Owl Timed trail 50km Lawrence, KS, USA 23 Jan Florida Roots Trail Series: Fort Clinch Trail trail 50km Amelia Island, FL, USA 23 Jan Sean OBrien 100 km Trail Race Trail trail 100km / 62mi Calabasas, CA, USA 23 Jan Sean OBrien 50 Mile Trail Race Trail trail 80km Calabasas, CA, USA 23 Jan Sean OBrien 50 km Trail Race Trail trail 50km Calabasas, CA, USA 23 Jan Snowbird Challenge Trail trail 50km Greenville, SC, USA 23 Jan Ultra Trail Gazelles Sahara 110 km Trail trail 110km / 68mi Tozeur, TUN 23 Jan Ultra Trail Gazelles Sahara 70 km Trail trail 70km Tozeur, TUN 23 Jan Ultra Trail dAngkor 64km - Bayon Trail Trail trail 64km Siem Reap, Angkor, CAM 23 Jan Wilson Creek Frozen 50K Trail trail 50km Melba, ID, USA 24 Jan Cactus Roulette Endurance - 12h Lark Timed trail 50km Lawrence, KS, USA 24 Jan Cactus Roulette Endurance - 6h Timed trail 50km Lawrence, KS, USA 24 Jan Del Dios Trail Runs Trail trail 50km Escondido, CA, USA 24 Jan Rocks and Roots Trail Series 50K #1 Trail trail 50km Lewis Center, OH, USA 30 Jan AZT Oracle Rumble 50 Km Trail trail 50km Oracle, AZ, USA 30 Jan AZT Oracle Rumble 50 Mile Trail trail 80km Oracle, AZ, USA 30 Jan Arches Ultra 50 Mile Race Trail trail 80km Moab, UT, USA 30 Jan Arches Ultra 50 km Race Trail trail 50km Moab, UT, USA 30 Jan Forgotten Florida 50 Mile Race Trail trail 80km Christmas, FL, USA 30 Jan Live Oak Ultra Trail trail 50km Biloxi, MS, USA 30 Jan Pleasant Ridge Backyard Ultra Timed trail 50km Greenville, SC, USA 30 Jan The Bootleg Boogie Trail trail 80km Boulder City, NV, USA 30 Jan The Hootn Bulldog Track Ultra Timed trail 50km Mirimar, FL, USA 30 Jan Ultramaraton non stop 6 horas Cancún Timed trail 50km Cancun, MEX 31 Jan Clearwater Running Festival 50k Ultra Trail trail 50km Clearwater, FL, USA

February

5 Feb 3ème Backyard Infinity Trail Pont du Gard Timed trail 50km Vers-Pont-du-Gard, FRA 6 Feb Elephant Mountain 50 Mile Trail trail 80km Cave Creek, AZ, USA 6 Feb Elephant Mountain 50 km Trail trail 50km Cave Creek, AZ, USA 6 Feb Frozen 50km Race Trail trail 50km Cassadaga, NY, USA 6 Feb Golden Gate 50 km Winter Trail Run Trail trail 50km Rodeo Beach, Sausalito, CA, USA 6 Feb Golden Gate Trail Classic 50 Mile Race Trail trail 80km San Francisco, CA, USA 6 Feb Golden Gate Trail Classic 50 km Race Trail trail 50km San Francisco, CA, USA 6 Feb Mill Stone 50K Trail trail 50km Fort Mill, SC, USA 6 Feb Railway 50k Trail trail 50km Fultondale, AL, USA 6 Feb Stone Mountain Massacre Trail trail 50km Roaring Gap, NC, USA 6 Feb Stories Ultra 15 Hour Run Timed trail 50km Colorado Springs, CO, USA 6 Feb Whispering Pines 12 Hours Timed trail 50km Inverness, FL, USA 7 Feb North Texas Ultra Trail trail 50km Jacksboro, TX, USA 7 Feb Stories Ultra 6 Hour Run Timed trail 50km Colorado Springs, CO, USA 13 Feb Rocky 50 Km Trail Run Trail trail 50km Huntsville, TX, USA 13 Feb Rocky 50 Mile Trail Run Trail trail 80km Huntsville, TX, USA 13 Feb Sombrero Ultra Running Festival (SURF) Timed trail 50km Middleburg, FL, USA 13 Feb The Gambler Last Man Standing Timed trail 50km Pelham, AL, USA 13 Feb The Ranch 50 km Race Trail trail 50km Escondido, CA, USA 14 Feb Black Canyon Trail 50 Km Run Trail trail 50km Mayer, AZ, USA 20 Feb Febapple Frozen 50 Mile Trail trail 80km Mount Tabor, USA 20 Feb Flat Branch Ultra Trail trail 50km Columbia, MO, USA 20 Feb In the Woods 30A 50km Race Trail trail 50km Santa Rosa Beach, FL, USA 20 Feb Jackpot Ultra Running Festival 100km Race Trail trail 100km / 62mi Henderson, NV, USA 20 Feb Jackpot Ultra Running Festival 12 Hour Race Timed trail 50km Henderson, NV, USA 20 Feb Jackpot Ultra Running Festival 50 Mile Race Trail trail 80km Henderson, NV, USA 20 Feb Jackpot Ultra Running Festival 6 Hour Race Timed trail 50km Henderson, NV, USA 20 Feb Moab Red Hot 50 Mile Trail trail 80km Moab, UT, USA 20 Feb Moab Red Hot 55k Trail trail 55km Moab, UT, USA 20 Feb Montara Mountain 50 km Trail Run Trail trail 50km Pacifica, CA, USA 20 Feb Mount Cheaha 50K UltraMarathon Race Trail trail 50km Delta, AL, USA 20 Feb Old Ghost Ultra Trail trail 85km Seddonville, West Coast, NZL 20 Feb Red Dirt Ultra 100 Km Trail trail 100km / 62mi Natchitoches, LA, USA 20 Feb Red Dirt Ultra 50 Km Trail trail 50km Natchitoches, LA, USA 20 Feb Run Bermuda’s Backyard Timed trail 50km St. David's, Bermuda, BER 20 Feb Sandhills Trail & Ultra Festival 50 km Run Trail trail 50km Columbia, SC, USA 21 Feb Praying for blessings at temples Ultra Run Trail trail 46km Zhubei City, TWN 21 Feb Rocks and Roots Trail Series 50K #2 Trail trail 50km Lewis Center, OH, USA 27 Feb Arktos 12 Hour Ultra Timed trail 50km Dousman, WI, USA 27 Feb Arktos 6 Hour Ultra Timed trail 50km Dousman, WI, USA 27 Feb Copper Corridor 50km Race Trail trail 50km Superior, AZ, USA 27 Feb Davids Trail Endurance Run Trail trail 50km Mountain Home, AR, USA 27 Feb Grandmaster Ultras 50 Km Run Trail trail 50km Mesquite, NV, USA 27 Feb Grandmaster Ultras 50 Mile Run Trail trail 80km Mesquite, NV, USA 27 Feb Grit & Grace Trail Race Timed trail 50km Reidsville, NC, USA 27 Feb Hashawha Hills 50 km Trail Run Trail trail 50km Westminster, MD, USA 27 Feb Horse Thief Trail Run Trail trail 50km Austin, TX, USA 27 Feb Joanópolis Ultramarathon Trail trail 81km Joanópolis, SP, BRA 27 Feb Joanópolis Ultramarathon 64km Trail trail 64km Joanópolis, SP, BRA 27 Feb Lake Vian 100km Hilltop Run Trail trail 100km / 62mi Vian, OK, USA 27 Feb Lake Vian 50km Hilltop Run Trail trail 50km Vian, OK, USA 27 Feb Lake Vian 50mi Hilltop Run Trail trail 80km Vian, OK, USA 27 Feb Mt Yonah Vertical Race Trail trail 50km Cleveland, GA, USA 27 Feb Punch Out Ultra Timed trail 50km Molina, FL, USA 27 Feb SoCalUltraTrail at Tejon Ranch Trail trail 100km / 62mi Lebec, CA, USA 27 Feb Sycamore Canyon 100k Trail trail 100km / 62mi Poway, CA, USA 27 Feb Sycamore Canyon 50k Trail trail 50km Poway, CA, USA 27 Feb Taco Bell 50K Knoxville Trail trail 50km Knoxville, TN, USA 27 Feb Takanya Trail Trail trail 62km Waratah, TAS, AUS 27 Feb Ultraloucos Backyard Timed trail 50km São Bernardo do Campo. SP, BRA 27 Feb Will Rogers 24/12/6 Hour Trail trail 50km Pacific Palisades, CA, USA 28 Feb Joanópolis Ultramarathon 51km Trail trail 51km Joanópolis, SP, BRA 28 Feb St. Peters Way Ultra Trail trail 68km Ongar, GBR 28 Feb The Cowtown Marathon Trail trail 50km Fort Worth, TX, USA

March

6 Mar 8h de Fos-sur-Mer Timed trail 50km Fos-sur-Mer, FRA 6 Mar Antelope Canyon 50 Mile Race Trail trail 80km Page, AZ, USA 6 Mar Antelope Canyon 55 Km Race Trail trail 55km Page, AZ, USA 6 Mar Carl Touchstone Memorial Mississippi Trail 50 Km Trail trail 50km Laurel, MS, USA 6 Mar Carl Touchstone Memorial Mississippi Trail 50 Mile Trail trail 80km Laurel, MS, USA 6 Mar Conquer the Rock - Foothills 50K Trail trail 50km Pickens, SC, USA 6 Mar Crazy Desert Trail Race 100 km Race Trail trail 100km / 62mi San Angelo, TX, USA 6 Mar Crazy Desert Trail Race 50 km Race Trail trail 50km San Angelo, TX, USA 6 Mar Lark Hill 50K Dusk to Dawn Ultra Trail trail 50km Port Kennedy, WA, AUS 6 Mar Lenape Trail Run Trail trail 55km Millburn, NJ, USA 6 Mar Livingston Oval Ultra Timed trail 50km Livingston, NJ, USA 6 Mar Long Play Trail Race Trail trail 53km Brooksville, FL, USA 6 Mar McClellan Madness Run Timed trail 50km Anniston, AL, USA 6 Mar Motatapu Rab Ultra Trail trail 52.5km Wanaka, NZL 6 Mar Prickly Pear 50 km Trail Run Trail trail 50km San Antonio, TX, USA 6 Mar Red Mountain 50K Trail trail 50km Ivins, UT, USA 6 Mar Rock/Creek StumpJump 50K Trail trail 50km Chattanooga, TN, USA 6 Mar Swamp Fox Ultra 50km Trail trail 50km McClellanville, SC, USA 6 Mar Swamp Fox Ultra 50mi Trail trail 80km McClellanville, SC, USA 6 Mar Ultra Caballo Blanco Copper Canyon Ultra Trail trail 80km Urique, MEX 6 Mar Ultramaratona Peixo-Boi Trail trail 50km Brazil, BRA 6 Mar Vang Vieng Trail 52K Trail trail 52km Vang Vieng, LAO 12 Mar Ultramaratona Caminhos de Caravaggio UMCC 100mi Trail trail 160km / 99mi Farroupilha, RS, BRA 13 Mar Cyprus Backyard Ultra Timed trail 50km Larnaca, CYP 13 Mar Elizabeths Furnace Fat Ass 50 km Race Trail trail 50km Strasburg, VA, USA 13 Mar Etown Trail Classic Timed trail 50km Elizabethtown, KY, USA 13 Mar Hornby Island Trail trail 50km Hornby Island, BC, CAN 13 Mar Land Between The Lakes 50 Mile Trail Run Trail trail 80km Grand Rivers, KY, USA 13 Mar Land Between The Lakes 60 km Trail Run Trail trail 60km Grand Rivers, KY, USA 13 Mar Mesquite Canyon 50 Mile Trail trail 80km Waddell, AZ, USA 13 Mar Mesquite Canyon 50 km Trail trail 50km Waddell, AZ, USA 13 Mar Peytons Wild and Wacky 10x5Km Ultra Trail trail 50km Charleston, SC, USA 13 Mar The Mid South (Land Run) 55K Ultra Marathon Trail trail 50km Stillwater, OK, USA 13 Mar The Pistol 50 Km Ultra Run Trail trail 50km Alcoa, TN, USA 13 Mar The Pistol 50 Mile Ultra Run Trail trail 80km Alcoa, TN, USA 13 Mar Tombstone 50k Trail Run Trail trail 50km Valparaiso, IN, USA 13 Mar Tombstone 50mi Trail Run Trail trail 80km Valparaiso, IN, USA 14 Mar Königsforst-Marathon Trail trail 63.3km Bergisch Gladbach-Bensberg, DEU 19 Mar BackYard Ultra Warmia Timed trail 50km Olsztyn, POL 19 Mar San Diego Pirates Cove 12 Hour Run Timed trail 50km Lake Cuyamaca, CA, USA 19 Mar San Diego Pirates Cove 6 Hour Run Timed trail 50km Lake Cuyamaca, CA, USA 20 Mar American Bottoms 56mi Trail trail 90km Columbia, IL, USA 20 Mar Beigan Ultramarathon Trail trail 50km Beigan Township, TWN 20 Mar Chuckanut 50K Trail trail 50km Fairhaven, WA, USA 20 Mar Ekeberg Backyard Ultra Timed trail 50km Oslo, NOR 20 Mar Grasslands 50 Mile Trail Run Trail trail 80km Decatur, TX, USA 20 Mar Redwood (Spring) 50 km Trail Run Trail trail 50km Oakland, CA, USA 20 Mar The Big Alta Trail trail 100km / 62mi Marinwood, CA, USA 20 Mar Valencia Trail Race Trail trail 50km Valencia, CA, USA 20 Mar Yeti 11 Hour Endurance Run Timed trail 50km Lithia Springs, GA, USA 20 Mar Yeti 7 Hour Endurance Run Timed trail 50km Lithia Springs, GA, USA 21 Mar 12h-Weingäßchen Infinite Loop Timed trail 50km Schwabach, DEU 21 Mar 6h-Weingäßchen Infinite Loop Timed trail 50km Schwabach, DEU 21 Mar Frühlingsultra Trail trail 50km Freudenstadt-Grüntal, DEU 21 Mar Sand Monster Timed trail 50km Columbia, SC, USA 27 Mar Bad Ass Backyard Ultra Timed trail 50km Rio Linda, CA, USA 27 Mar Cappys Backyard Ultra Timed trail 50km Pioche, NV, USA 27 Mar Crown King Scramble 50K Trail trail 50km Lake Pleasant Regional Park, AZ, USA 27 Mar Skunk Ape 806/314 Trail Race Trail trail 50km Dixon, IL, USA 27 Mar The Bootlegger 100 Mile Trail Trail trail 161km / 100mi Jackson, GA, USA 27 Mar Vernal Equinox 12 Hour Race Timed trail 50km Batavia, OH, USA 27 Mar Vernal Equinox 12 Hour Race Ruckers Timed trail 50km Batavia, OH, USA 27 Mar Vernal Equinox 8 Hour Race Timed trail 50km Batavia, OH, USA 28 Mar Sleeping Giant Trail Runs Trail trail 50km Hamden, CT, USA

April

25 Apr 1 No bad weather Timed trail 50km Today Hoverberg, Svenstavik, SWE 25 Apr 3 x Kopa - Petrovicka Setka Trail trail 102km / 63mi Today Pokrzywna, POL 25 Apr 3 x Kopa - Ultramaraton Górski Trail trail 63km Today Pokrzywna, POL 25 Apr 6ème Trail du Pays des Châteaux Trail trail 63km Today Maslives, FRA 25 Apr 8 Lomma Backyard Ultra Timed trail 50km Today Lomma, SWE 25 Apr Altar Nutrition 100K Trail trail 100km / 62mi Today Avondale, IRL 25 Apr Altar Nutrition 50K Trail trail 50km Today Avondale, IRL 25 Apr Austria Backyard Ultra - Amstetten-Forstheide Timed trail 50km Today Amstetten, AUT 25 Apr Backyard La via Francigena Timed trail 50km Today Ponte a Rigo, ITA 25 Apr Backyard Ultra TriCity Timed trail 50km Today Gdansk, POL 25 Apr Beecraigs Backyard Ultra Timed trail 50km Today Linlithgow, GBR 25 Apr Beyond Newcastle Trail trail 55km Today Newcastle upon Tyne, GBR 25 Apr Billingen Trail Marathon Trail trail 47km Today Skövde, SWE ↑1,086m 25 Apr Bronze Dragonfly 12 Hour Ultra Day Timed trail 50km Today Savannah, GA, USA 25 Apr Bronze Dragonfly 6 Hour Ultra Timed trail 50km Today Savannah, GA, USA 25 Apr Butcombe Trail Ultra 50km Trail trail 50km Today Churchill, GBR 25 Apr Butcombe Trail Ultra 50mi Trail trail 80km Today Churchill, GBR 25 Apr Calderdale Way Ultra 30mi Trail trail 48km Today Brighouse, GBR 25 Apr Calderdale Way Ultra 50mi Trail trail 80km Today Heptonstall, GBR 25 Apr Cheyenne Mountain Trail Race Trail trail 50km Today Colorado Springs, CO, USA 25 Apr Childish Nonsense 50 Mile Race Trail trail 80km Today Palatine, IL, USA 25 Apr Childish Nonsense 50 km Race Trail trail 50km Today Palatine, IL, USA 25 Apr Chippewa Moraine 50km Ultra Marathon Trail trail 50km Today New Auburn, WI, USA 25 Apr Coopers Rock Trail Run 50km Trail trail 50km Today Morgantown, WV, USA 25 Apr DG24h - 12h Timed trail 50km Today Dabrowa Gornicza, POL 25 Apr DG24h - 6h Timed trail 50km Today Dabrowa Gornicza, POL 25 Apr Desert Wolf 100km Trail trail 100km / 62mi Today Johnson City, TX, USA 25 Apr Desert Wolf 50km Trail trail 50km Today Johnson City, TX, USA 25 Apr Devil o the Highlands Footrace Trail trail 68km Today Tyndrum, GBR 25 Apr Donut Run M.t Huoyan Trail trail 46.9km Today Sanyi Township, TWN 25 Apr Earth Day Buckle Mania 12h Timed trail 50km Today Abilene, KS, USA 25 Apr Endurancelife Pembrokeshire Ultra Trail trail 55km Today Little Haven, GBR 25 Apr Falling Water Ultras 100 km Trail trail 100km / 62mi Today New River Gorge National Park, WV, USA 25 Apr Falling Water Ultras 50 km Trail trail 50km Today New River Gorge National Park, WV, USA 25 Apr Fault Line Ultra 100mi Trail trail 161km / 100mi Today Wellington, NZL 25 Apr Finnsjön 100 - 100km Trail trail 100km / 62mi Today Mölnlycke, SWE ↑2,454m 25 Apr Finnsjön 100 - 50km Trail trail 50km Today Mölnlycke, SWE ↑280m 25 Apr Forth Ultra Trail trail 71km Today Falkirk, GBR 25 Apr Frisco Railroad 50 Km Run Trail trail 50km Today Willard, MO, USA 25 Apr Frisco Railroad 50 Mile Run Trail trail 80km Today Willard, MO, USA 25 Apr GHO Endurance Challenge Timed trail 50km Today Jonesboro, TN, USA 25 Apr Grand Raid Ventoux by UTMB - 50K Trail trail 49km Today Malaucene, FRA 25 Apr Harzquerung Trail trail 54km Today Wernigerode, DEU 25 Apr Hells Dells Trail trail 50km Today Prescott, AZ, USA 25 Apr Ith-Hils-Ultratrail Trail trail 81km Today Salzhemmendorf, DEU 25 Apr Julsø Ultra 50mi Trail trail 80km Today Silkeborg, DNK 25 Apr Julsø Ultra 60km Trail trail 60km Today Silkeborg, DNK 25 Apr Las Virgenes Canyon Ultra Trail Races Trail trail 100km / 62mi Today Los Angeles (West Hills), CA, USA 25 Apr Legends Backyard Ultra Timed trail 50km Today Retie, BEL 25 Apr Locomotion 12 Hour Run Timed trail 50km Today Hixson, TN, USA 25 Apr Locomotion 6 Hour Run Timed trail 50km Today Hixson, TN, USA 25 Apr Loop The Hooch 50k Trail trail 50km Today Suwanee, GA, USA 25 Apr Loskop Ultra Marathon 50km Trail trail 50km Today Middelburg, ZAF 25 Apr MRC Finspång Loop Trail Ultra Trail trail 50km Today Bönernbadet, Finspång, SWE ↑2,216m 25 Apr Machete Trail Madness 100km Trail trail 100km / 62mi Today Perris, CA, USA 25 Apr Machete Trail Madness 50km Trail trail 50km Today Perris, CA, USA 25 Apr Mile 0 Flint Hills Trail Race Trail trail 50km Today Osawatomie, KS, USA 25 Apr Monbrec Canal 40 Mile Race (MBCR) Trail trail 64km Today Malpas, GBR 25 Apr Munkastigen Trailrun Trail trail 42.3km Today Laxå, SWE ↑685m 25 Apr Mustavuori Uphill Challenge 6h Timed trail 50km Today Tampere, FIN 25 Apr Mustavuori Uphill Challenge 8h Timed trail 50km Today Tampere, FIN 25 Apr North Wales 100km Trail trail 100km / 62mi Today Prestatyn, GBR 25 Apr North Wales 50km Trail trail 53km Today Prestatyn, GBR 25 Apr On the Dam Trail 34 Mile Trail Race Trail trail 55km Today Hooversville, PA, USA 25 Apr Pandoras Box of Rox 50 Mile Trail trail 84km Today Burnet, TX, USA 25 Apr Pick Your Poison 50K Trail Run Trail trail 50km Today Barrie, ON, CAN 25 Apr Pieniny Ultra Trail Trail trail 44km Today Szczawnica, POL 25 Apr Promise Land 50K++ Trail trail 50km Today Bedford, VA, USA 25 Apr Rockin Choccolocco 50K Trail trail 50km Today Heflin, AL, USA 25 Apr Royal Canal Run Longford Ultra Trail trail 53km Today Longford, IRL 25 Apr Royal Gorge Groove Trail trail 50km Today Canon City, CO, USA 25 Apr Røyse Ultra Trail trail 80km Today Røyse, NOR 25 Apr SOBVL - Wuhlheider 12 Stundenlauf Timed trail 50km Today Berlin, DEU 25 Apr Schuylkill River 50k Trail trail 50km Today Mont Clare, PA, USA 25 Apr Skunk Ape 50 Mile Endurance Run Trail trail 80km Today Ocala, FL, USA 25 Apr Sunrise Scramble Timed trail 50km Today Glendo, WY, USA 25 Apr TARC Spring Classic 50 km Trail trail 50km Today Weston, MA, USA 25 Apr The Canyons Endurance 50 Km Run Trail trail 50km Today Auburn, CA, USA 25 Apr The Firefly Trail Run Timed trail 50km Today Hendersonville, NC, USA 25 Apr The GUMBY Last One Standing Timed trail 50km Today Coree, ACT, AUS 25 Apr The Medieval Backyard Ultra Timed trail 50km Today Penarth, GBR 25 Apr The Trail Marathon 50K - Trail Weekend Trail trail 50km Today Pinckney, MI, USA 25 Apr Thelma and Louise Marathon Trail trail 50km Today Moab, UT, USA 25 Apr Thumb Coast Ultra 50 Km Trail trail 50km Today Caseville, MI, USA 25 Apr Thumb Coast Ultra 50 Mile Trail trail 80km Today Harbour Beach, MI, USA 25 Apr Total Coastal Ultra Trail trail 50km Today Kingswear, GBR 25 Apr Troublesome Hollow 50K Trail trail 50km Today Bristol, VA, USA 25 Apr Ultra Trail Drakensberg - Giant’s Cup Uncut (GCU 62) Trail trail 65km Today Himeville, KZN, ZAF 25 Apr Ultra Wysoczyzna - Ryk Jelenia Trail trail 103km / 64mi Today Elblag, POL 25 Apr Ultra Wysoczyzna - Wycie wilka Trail trail 54km Today Elblag, POL 25 Apr Ultratrail Fränkische Schweiz 66km Trail trail 66km Today Ebermannstadt, DEU 25 Apr VXO Ultrafest - VXO24h Timed trail 50km Today Växjö, SWE ↑1m 25 Apr Venner Moor Ultramarathon Trail trail 45.5km Today Senden, DEU 25 Apr Wawayanda 100km Trail trail 100km / 62mi Today Hewitt, NJ, USA 25 Apr Wawayanda 50km Trail trail 50km Today Hewitt, NJ, USA 25 Apr Wawayanda 50mi Trail trail 80km Today Hewitt, NJ, USA 25 Apr Weiser River Trail Trail trail 50km Today Boise, ID, USA 25 Apr Wold Rangers Way Ultra Trail trail 50km Today Tibthorpe, GBR 26 Apr Eastnor Castle Backyard 8h Timed trail 50km Tomorrow Eastnor, GBR 26 Apr Fault Line Ultra 50km Trail trail 50km Tomorrow Wellington, NZL 26 Apr I Double Ogg Dare You 6HR run Timed trail 50km Tomorrow Shawnee, KS, USA 26 Apr Jack Bristol Lake Waramaug 100km Ultra Marathon Trail trail 100km / 62mi Tomorrow New Preston, CT, USA 26 Apr Jack Bristol Lake Waramaug 50km Ultra Marathon Trail trail 50km Tomorrow New Preston, CT, USA 26 Apr Jack Bristol Lake Waramaug 50mi Ultra Marathon Trail trail 80km Tomorrow New Preston, CT, USA 26 Apr Mighty Oak Memorial Run Trail trail 50km Tomorrow Hartford, WI, USA 26 Apr Naabtal 50 Ultralauf Trail trail 50km Tomorrow Duggendorf, DEU 26 Apr New Store Old Street Ultra Run Trail trail 53.5km Tomorrow Shitan Township, TWN 26 Apr Pingyang The Red Army Historic Trail Trail trail 62km Tomorrow Wenzhou City, CHN 26 Apr Prince Mangosuthu Ultra Marathon Trail trail 52km Tomorrow Nquthu, KZN, ZAF 26 Apr Run Guizhou Mountain Race - Tongzi Trail trail 52km Tomorrow Tongzi County, CHN 26 Apr Shropshire Way 80k Trail trail 80km Tomorrow Craven Arms, GBR 26 Apr The GUMBaby Trail trail 53.6km Tomorrow Coree, ACT, AUS 26 Apr VXO Ultrafest - VXO100k (Svenskt Mästerskap) Trail trail 100km / 62mi Tomorrow Växjö, SWE ↑271m 26 Apr Yangchun Jilongding Azalea Trail running race Trail trail 50km Tomorrow Yangchun City, CHN 27 Apr Fault Line Ultra 100km Trail trail 100km / 62mi In 2 days Wellington, NZL 28 Apr 5D Ultramarathon 460km Trail trail 460km / 286mi In 3 days Valenca, RJ, BRA 3 Apr Behind the Rocks 50 Mile Race Trail trail 80km Moab, UT, USA 3 Apr Behind the Rocks 50Km Race Trail trail 50km Moab, UT, USA 3 Apr CT 123 Trail trail 200km / 124mi East Thompson, CT, USA 3 Apr Leatherwood Ultras 100 Mile Trail trail 161km / 100mi Ferguson, NC, USA 3 Apr Leatherwood Ultras 50 Km Trail trail 50km Ferguson, NC, USA 3 Apr Leatherwood Ultras 50 Mile Trail trail 80km Ferguson, NC, USA 3 Apr Muddy Duck (The Fluffy Duck) Trail trail 50km Lewis Center, OH, USA 3 Apr Oak Mountain 50km Race Trail trail 53km Pelham, AL, USA 3 Apr XX Copa Argentina de Ultradistancia Trail trail 50km Puan, prcia de Bs As, ARG 10 Apr Ancient Lakes 50 Mile Trail Run Trail trail 80km Quincy, WA, USA 10 Apr Ancient Lakes 50 km Trail Run Trail trail 50km Quincy, WA, USA 10 Apr BiMa 100 HTN Trail trail 100km / 62mi Witzenhausen-Kleinalmerode, DEU 10 Apr Death by 5k Memphis Trail trail 50km Memphis, TN, USA 10 Apr Englishs Ridge Rumble 50 Km Trail trail 50km Fayetteville, NY, USA 10 Apr Knobstone 50 Trail trail 80km Borden, IN, USA 10 Apr Ozarks Foothills 50 km Race Trail trail 50km Wildwood, MO, USA 10 Apr PUMelchen 2027 Trail trail 49km Osnabrück, DEU 10 Apr PiesBERG-Ultra-Marathon Trail trail 50km Osnabrück, DEU 17 Apr Hyner View Trail Challenge 50 Km Trail trail 50km Hyner, PA, USA 17 Apr Silver Moon Race 6 Hour Race Timed trail 50km Reedley, CA, USA

May

1 May 5D Ultramarathon 100km Trail trail 100km / 62mi In 6 days Valenca, RJ, BRA 1 May 5D Ultramarathon 160km Trail trail 160km / 99mi In 6 days Valenca, RJ, BRA 1 May 5D Ultramarathon 230km Trail trail 230km / 143mi In 6 days Valenca, RJ, BRA 1 May Adventure Race 2026 Trail trail 45km In 6 days Pirenópolis, Go, BRA 1 May BRLos Itupeva Timed trail 50km In 6 days Itupeva, SP, BRA 1 May Biri Backyard ultra 50M Timed trail 50km In 6 days Biri, NOR 1 May Bocaina Park Trail 70km Trail trail 70km In 6 days Araxa, MG, BRA 1 May Heim Front Yard Timed trail 50km In 6 days Kyrksæterøra, NOR 1 May Ikara Ultra - 100mi Trail trail 161km / 100mi In 6 days Flinders Ranges, SA, AUS 1 May L.A.T Legends Ardennes Trail - La Saint Remacle Ultra Trail trail 195km / 121mi In 6 days Ocquier, BEL 1 May Mayday Ultra Trail trail 50km In 6 days Langenhagen/Kaltenweide, DEU 1 May Otzberger Waldultra (1.SDHU) Trail trail 45km In 6 days Otzberg, DEU 1 May Salt Flats 50 Km Trail trail 50km In 6 days Wendover, UT, USA 1 May Salt Flats 50 Mile Trail trail 80km In 6 days Wendover, UT, USA 1 May Sowi BackYard Ultra Timed trail 50km In 6 days Bielawa, POL 1 May Winter Bay Backyard Ultra Timed trail 50km In 6 days Liljeholmen, Stockholm, SWE ↑72m 2 May 10h Grayson Highlands 50 Mile Race Trail trail 80km In 7 days Mouth of Wilson, VA, USA 2 May 11 Hultsfred Backyard Ultra Timed trail 50km In 7 days Hultsfred, SWE 2 May 1º Ultramaratona Menino da Porteira 100km Trail trail 100km / 62mi In 7 days Ouro Fino, MG, BRA 2 May 1º Ultramaratona Menino da Porteira 57km Trail trail 57km In 7 days Ouro Fino, MG, BRA 2 May 2 Rytterne Backyard Ultra Timed trail 50km In 7 days Västerås, SWE 2 May 3º Imarui Trail Run Trail trail 50km In 7 days Imarui, SC, BRA 2 May 5ª Malcesine Baldo Trail Trail trail 52km In 7 days Malcesine (VR), ITA 2 May Aros Marathon Trail trail 50km In 7 days Uppsala, SWE ↑293m 2 May Belgian Front Memorial Trail Trail trail 101km / 63mi In 7 days Mesen, BEL 2 May Big A 50K Trail Race Trail trail 50km In 7 days York, ME, USA 2 May Bocaina Park Trail 45km Trail trail 45km In 7 days Araxa, MG, BRA 2 May Carolina Thread Timed trail 50km In 7 days Lancaster, SC, USA 2 May Collegiate Peaks 50 Miles Trail trail 83km In 7 days Buena Vista, CO, USA 2 May Coyote Two Moon Ultras 55 Mile Trail trail 88km In 7 days Ojai, CA, USA 2 May Coyote Two Moon Ultras 55 km Trail trail 55km In 7 days Ojai, CA, USA 2 May Diverge Skyruns 50km Trail trail 50km In 7 days Queenstown, TAS, AUS 2 May Farm Park Challenge - 10 Hour Run Timed trail 50km In 7 days Derwood, MD, USA 2 May Farm Park Challenge - 6 Hour Run Timed trail 50km In 7 days Derwood, MD, USA 2 May Folsom Lake Trail Run - Spring 50K Trail trail 50km In 7 days Folsom, CA, USA 2 May Fra Grænsen til Grenen Etappe 1 Trail trail 46km In 7 days Kupfermühle, DNK 2 May Grayson Highlands 50km Race Trail trail 50km In 7 days Mouth of Wilson, VA, USA 2 May Great Barrier Reef GBR100 & GBR60 Trail trail 50km In 7 days Cairns, QLD, AUS 2 May Great Southern 100 Km Endurance Run Trail trail 100km / 62mi In 7 days Kennesaw, GA, USA 2 May Greenland Trail Race Trail trail 50km In 7 days Larkspur, CO, USA 2 May Hacienda Hills Trail Run - Spring Trail trail 50km In 7 days San Jose, CA, USA 2 May Heartland 50 Km Race Trail trail 50km In 7 days Cassoday, KS, USA 2 May Heartland 50 Mile Race Trail trail 80km In 7 days Cassoday, KS, USA 2 May Hearts Desire 6-Hour Endurance Run Timed trail 50km In 7 days Herrin, IL, USA 2 May Hills Creek 12 Hour Endurance Challenge Timed trail 50km In 7 days Wellsboro, PA, USA 2 May Hills Creek 6 Hour Endurance Challenge Timed trail 50km In 7 days Wellsboro, PA, USA 2 May Ikara Ultra - 100km Trail trail 100km / 62mi In 7 days Flinders Ranges, SA, AUS 2 May Ikara Ultra - 50km Trail trail 50km In 7 days Flinders Ranges, SA, AUS 2 May Ikara Ultra - 50mi Trail trail 80km In 7 days Flinders Ranges, SA, AUS 2 May Innsbruck Alpine Trailrun Festival K110 Trail trail 110km / 68mi In 7 days Innsbruck, AUT 2 May Innsbruck Alpine Trailrun Festival K85 Trail trail 85km In 7 days Innsbruck, AUT 2 May KCTCT The Cascade Trail trail 54km In 7 days Koh Chang Tai, THA 2 May L.A.T Legends Ardennes Trail 100km Trail trail 111km / 69mi In 7 days Nisramont, BEL 2 May L.A.T Legends Ardennes Trail 60km Trail trail 63km In 7 days Lamormenil, BEL 2 May LOZ Traverse Trail trail 50km In 7 days Kaiser, MO, USA 2 May Lafferde Loop Challenge Timed trail 50km In 7 days Lengede, DEU 2 May Malvern Hills Ultra 31 Miles Trail trail 50km In 7 days Suckley, Worcester, GBR 2 May Malvern Hills Ultra 38 Miles Trail trail 61km In 7 days Admiral Rodney, Worcester, GBR 2 May Malvern Hills Ultra 47 Miles Trail trail 76km In 7 days Abberly, Worcester, GBR 2 May Maple Syrup Fun Run Trail trail 50km In 7 days Faribault, MN, USA 2 May McDonald Forest 50K Trail Run Trail trail 50km In 7 days Corvallis, OR, USA 2 May Melbourne Frontyard Ultra Timed trail 50km In 7 days Carlton North, VIC, AUS 2 May Miwok 100k Trail Race Trail trail 100km / 62mi In 7 days Stinson Beach, CA, USA 2 May N12 Ultra Marathon Trail trail 50km In 7 days Potchefstroom, ZAF 2 May Otterndorfer Gezeitenlauf Timed trail 50km In 7 days Otterndorf, DEU 2 May Otzberger Feldultra (2. Etappe vom 1.SHDU) Trail trail 45.2km In 7 days Otzberg, DEU 2 May Oxbow 50km Race Trail trail 50km In 7 days Glenboro, MB, CAN 2 May Pennine Barrier Ultra 50 Trail trail 80km In 7 days Malham, GBR 2 May Perfect Day 50K Trail trail 50km In 7 days Keezletown, VA, USA 2 May Perseløpet ultra 100km Trail trail 100km / 62mi In 7 days Eidsvoll, NOR 2 May Popple Shoot Trail Races Trail trail 87km In 7 days Minong, WI, USA 2 May Porlahälsan Backyard Ultra (Silver Ticket) Timed trail 50km In 7 days Laxå, SWE ↑53m 2 May Rock The Ridge 50-Mile Endurance Challenge Trail trail 80km In 7 days Gardiner, NY, USA 2 May Run Happy 50K Trail trail 50km In 7 days North Liberty, IN, USA 2 May Skogvokteren Ultra Trail trail 88km In 7 days Porsgrunn, NOR 2 May Spartan Trail - Bear Mountain Trail Challenge Trail trail 50km In 7 days Tomkins Cove, NY, USA 2 May Strolling Jim 40 Mile Trail trail 64km In 7 days Wartrace, TN, USA 2 May The BIG 50 Trail trail 50km In 7 days Pine Mountain, GA, USA 2 May The Big Deal at Great Seal Trail trail 50km In 7 days Chillicothe, OH, USA 2 May The Howum - Heart of Wales Ultra Marathon Trail trail 48km In 7 days Llanidloes, GBR 2 May Trail Amizmiz 62k Trail trail 62km In 7 days Amizmiz, MAR 2 May Trail Mix Race Trail trail 50km In 7 days Rockford, MN, USA 2 May Trosa Backyard Ultra Timed trail 50km In 7 days Trosa, SWE 2 May Tuthell 50K Trail trail 50km In 7 days Sioux Falls, SD, USA 2 May Ultra Trail Challenge Bailidujuan 50 Trail trail 50km In 7 days Bijie City, CHN 2 May Ultra X 60km Scotland Trail trail 60km In 7 days Inverness, GBR 2 May Van Cortlandt Park 50k Trail trail 50km In 7 days Bronx, NY, USA 2 May White Lake Ultras 12 Hour Race Timed trail 50km In 7 days Tamworth, NH, USA 2 May White Lake Ultras 6 Hour Race Timed trail 50km In 7 days Tamworth, NH, USA 2 May Wild Wild West 50M Trail trail 80km In 7 days Lone Pine, CA, USA 2 May Wild Wild West 50k Trail trail 50km In 7 days Lone Pine, CA, USA 2 May Wilsons Promontory 100 km Trail Race Trail trail 101km / 63mi In 7 days Wilsons Promontory, VIC, AUS 2 May Wilsons Promontory 50km Trail Race Trail trail 50km In 7 days Wilsons Promontory, VIC, AUS 2 May Wuyishan Trail Race 60 Km Trail trail 60km In 7 days Wuyishan City, CHN 3 May 4 Crete Senesi Ultra Marathon Trail trail 50km Rapolano Terme (SI), ITA 3 May Dirty Feet Kal Park 50 Trail trail 50km Vernon, BC, CAN 3 May Fra Grænsen til Grenen Etappe 2 Trail trail 47km Aabenraa, DNK 3 May Halener Mini Backyard Timed trail 50km Lotte, DEU 3 May Izmir Stundenlauf Timed trail 50km Izmir, TUR 3 May KIA False Bay 50km Trail trail 50km Kleinmond, ZAF 3 May Sisters Country Trail trail 50km Sisters, OR, USA 3 May The Blue 2 Blue Challenge Trail trail 50km New Haven, CT, USA 3 May Ultra X 50km Scotland Trail trail 50km Fort Augustus, GBR 4 May Fra Grænsen til Grenen Etappe 3 Trail trail 46km Jegerup/Sommersted, DNK 4 May Volta da Lagoa 50km Trail trail 50km Maceio, Al, BRA 5 May Fra Grænsen til Grenen Etappe 4 Trail trail 46km Vejen, DNK 6 May Fra Grænsen til Grenen Etappe 5 Trail trail 48km Vejle (Skibet), DNK 7 May Fra Grænsen til Grenen Etappe 6 Trail trail 52km Nørre Snede, DNK 8 May Cocodonan Flagstaff Crest Trail trail 61km Black Canyon City, AZ, USA 8 May Fra Grænsen til Grenen Etappe 7 Trail trail 47km Knudstrup, DNK 8 May K6 Czech Ultramarathon Festival - 12h Timed trail 50km Konstantinovy Lazne, CZE 9 May 1 Hoby Backyard Ultra 12H Timed trail 50km Bräkne-Hoby, SWE 9 May 100km de Saint Loup des Vignes Trail trail 100km / 62mi Saint Loup des Vignes, FRA 9 May 15ème Semi Trail des Ô Plateaux Trail trail 70km Mantasoa, MAD 9 May 1º Mulas Backyard Ultra Timed trail 50km Veranópolis, RS, BRA 9 May 50km de Saint Loup des Vignes Trail trail 50km Saint Loup des Vignes, FRA 9 May Altorp Ultra Timed trail 50km Altorp, Stockholm, SWE ↑109m 9 May Alutaguse Mee Ultra Timed trail 50km Alutaguse, EST 9 May Backyard Lampeland Timed trail 50km Lampeland, NOR 9 May Best Dam Backyard Ultra Timed trail 50km Waitaki, NZL 9 May Boise Greenbelt Relays Trail trail 72km Boise, ID, USA 9 May Brighton Backyard Ultra Timed trail 50km Brighton, GBR 9 May Buggis Backyard Ultra 12H Timed trail 50km Buggamåla 114, Holmsjö, SWE 9 May CT Trailmixers Spring Fling 600 Trail Race Timed trail 50km Southington, CT, USA 9 May Cambotas Trail Fest Trail trail 45km Cocais, MG, BRA 9 May Circle of The Dragon Timed trail 50km Meridian, MS, USA 9 May Conquer the Canuck 12h Timed trail 50km Cambridge, ON, CAN 9 May Conquer the Canuck 50 Km Trail trail 50km Cambridge, ON, CAN 9 May Dawn to Dusk to Dawn 12 Hour Timed trail 50km Sharon Hill, PA, USA 9 May Dawn to Dusk to Dawn 50K Trail trail 50km Sharon Hill, PA, USA 9 May Dirty German Endurance Fest 50 Mile Trail trail 80km Philadelphia, PA, USA 9 May Dirty German Endurance Fest 50 km Trail trail 50km Philadelphia, PA, USA 9 May Dont Fence Me In Trail Run Trail trail 50km Helena, MT, USA 9 May Dukeries Ultra 30 Mile Trail trail 50km Walesby, GBR 9 May Dukeries Ultra 40 Mile Trail trail 66km Walesby, GBR 9 May EHQ Valley Falls 12 Hour Race Timed trail 50km Fairmont, WV, USA 9 May EHQ Valley Falls 6 Hour Race Timed trail 50km Fairmont, WV, USA 9 May Eagleton Mine Camp Trail Challenge Trail trail 50km Lock Haven, PA, USA 9 May East Texas 50km Ultra Trail trail 50km Mineola, TX, USA 9 May Endurancelife Exmoor Ultra Trail trail 51km Martinhoe, GBR 9 May Formartine & Buchan Railway 12 hr Ultra Timed trail 50km Auchnagatt, GBR 9 May Formartine & Buchan Railway 6 hr Ultra Timed trail 50km Auchnagatt, GBR 9 May Fra Grænsen til Grenen Etappe 8 Trail trail 46km Hjarbaek, DNK 9 May Garmin Ultra Race Myslenice 48km Trail trail 48km Myslenice, POL 9 May Garmin Ultra Race Myslenice 78km Trail trail 78km Myslenice, POL 9 May Glacier Ridge Trail 50 Mile Ultramarathon Trail trail 80km Portersville, PA, USA 9 May Glacier Ridge Trail 50 km Ultramarathon Trail trail 50km Portersville, PA, USA 9 May Goring Gap Run 50 Mile Ultra Trail trail 80km Reading, GBR 9 May Gotaleden Ultra Trail trail 75km Göteborg, SWE ↑1,825m 9 May Grizzly Peak 50k Trail trail 50km Berkeley, CA, USA 9 May GutsMuths-Rennsteiglauf Trail trail 73.9km Eisenach, DEU 9 May Harriers Elk/Beaver Ultras, 100km Trail trail 100km / 62mi Saanich, BC, CAN 9 May Harriers Elk/Beaver Ultras, 50km Trail trail 50km Saanich, BC, CAN 9 May Harriers Elk/Beaver Ultras, 50mi Trail trail 80km Saanich, BC, CAN 9 May Ice Age Trail 50 Mile Run Trail trail 80km La Grange, WI, USA 9 May Ice Age Trail 50 km Run Trail trail 50km La Grange, WI, USA 9 May Jemez Mountain 50km Trail Run Trail trail 50km Los Alamos, NM, USA 9 May Jemez Mountain 50mi Trail Run Trail trail 80km Los Alamos, NM, USA 9 May John Wayne Grit Series - Newport Coast Trail trail 50km Laguna Beach, CA, USA 9 May Jumla Rara Ultra Marathon Trail trail 49km Jumla, NEP 9 May Malta Gozo Trails Trail trail 50km Ghajsielem, Gozo, MLT 9 May Margaret River Ultra Trail trail 80km Hamelin Bay, WA, AUS 9 May Mind The Ducks 12 Hour Run Timed trail 50km Webster, NY, USA 9 May Mountainman Nesselwang Trail trail 70km Nesselwang, DEU 9 May Muddy Crudds Ultra Trail Party Timed trail 50km Valley, AL, USA 9 May Nakkertok Trail Enduro - 12h Timed trail 50km Val-des-Monts, QC, CAN 9 May Nakkertok Trail Enduro - 6h Timed trail 50km Val-des-Monts, QC, CAN 9 May Nekotrail Trail trail 80km Oslo, NOR 9 May North Sea Ultra Sylt Trail trail 111km / 69mi Kampen, Sylt, DEU 9 May Paiute Meadows Trail Run Trail trail 50km Susanville, CA, USA 9 May Pigtails Run 50K Trail trail 50km Ravensdale, WA, USA 9 May Quad Rock 50 Mile Trail trail 80km Bellvue, CO, USA 9 May Quicksilver 100 km Endurance Run Trail trail 100km / 62mi San Jose, CA, USA 9 May Quicksilver 50 km Endurance Run Trail trail 50km San Jose, CA, USA 9 May Run for Kids 12 Hour Challenge Timed trail 50km Pelham, AL, USA 9 May Rund um Detmold Trail trail 56km Detmold, DEU 9 May Running with my Gnomies 50km Race Trail trail 50km Dover, OH, USA 9 May South Island Ultra Marathon 100km Trail trail 100km / 62mi Hokitika, NZL 9 May South Island Ultra Marathon 54km Trail trail 54km Hokitika, NZL 9 May Speed Goat Ultra 12 Hour Race Timed trail 50km Broadview, MT, USA 9 May Speed Goat Ultra 24 Hour Race Timed trail 50km Broadview, MT, USA 9 May Speed Goat Ultra 6 Hour Race Timed trail 50km Broadview, MT, USA 9 May Sun Mountain 50 Mile Trail Races Trail trail 80km Winthrop, WA, USA 9 May Sun Mountain 50 km Trail Races Trail trail 50km Winthrop, WA, USA 9 May TARC Wapack and Back 43 Mile Trail Race Trail trail 69km Ashburnham, MA, USA 9 May TARC Wapack and Back 50 Mile Trail Race Trail trail 80km Ashburnham, MA, USA 9 May Tejas Dirt Festival Trail trail 64km Rocksprings, TX, USA 9 May Tenacious 10h Endurance Challenge Timed trail 50km Llanbedr, GBR 9 May The Bridge 40 Trail trail 64km Chepstow, GBR 9 May The Ripper - Sunrise to Sunset Timed trail 50km Pocomoke, MD, USA 9 May Thunderbunny 50K Trail trail 50km Athens, OH, USA 9 May Tiger Claw Trail trail 50km Issaquah, WA, USA 9 May Trail So Bugey - Lintégrale So Bugey Trail trail 72km Lhuis, FRA 9 May Trail de Chimay Trail trail 50km Bourlers, BEL 9 May Traverse City Trail Running Festival 100 km Race Trail trail 100km / 62mi Traverse City, MI, USA 9 May Traverse City Trail Running Festival 50 km Race Trail trail 50km Traverse City, MI, USA 9 May Traverse City Trail Running Festival 75 km Race Trail trail 75km Traverse City, MI, USA 9 May Valkyrie Trail Race 50k Trail trail 50km Colorado Springs, CO, USA 9 May Wascally Wabbit Trail trail 62km Folly Lake, NS, CAN 9 May Watuppa Trail Race 50km Trail trail 50km Fall River, MA, USA 9 May West Virginia Trail Fest - 100 Km Trail trail 100km / 62mi Snowshoe, WV, USA 9 May West Virginia Trail Fest - 50 Km Trail trail 50km Snowshoe, WV, USA 9 May Wildflower Trail Run Trail trail 50km Bastrop, TX, USA 9 May Wörthersee Trail Festival Trail trail 64km Pörtschach, AUT 10 May 6hrs Sittard Timed trail 50km Sittard, NLD 10 May Chianti Classico Marathon Ultra Trail Trail trail 48km Mercatale Val di Pesa, FI, ITA 10 May Fra Grænsen til Grenen Etappe 9 Trail trail 56km Aars, DNK 10 May Goring Gap Run 52 km Ultra Trail trail 52km Reading, GBR 10 May La Viking NordicWalk & Trail - La Route dOdin Trail trail 46km Orival, FRA 10 May Marialinden - Kutt nom DOM Trail trail 50km Marialinden, DEU 10 May Mostindien Marathon - 50 km Ultra Trail trail 50km Arbon TG, CHE 10 May NeckarCross-Ultrarace Trailrunning Trail trail 59km Hirschhorn, DEU 10 May Northants Ultra 35 Shires & Spires Trail trail 56km Naseby, Northampton, GBR 10 May Run Narawntapu 50 km Trail Race Trail trail 50km Greens Beach, TAS, AUS 10 May Sri Chinmoy 12h Lauf Basel Timed trail 50km Basel, CHE 11 May Fra Grænsen til Grenen Etappe 10 Trail trail 49km Aalborg, DNK 12 May Fra Grænsen til Grenen Etappe 11 Trail trail 46km Østervrå, DNK 13 May Fra Grænsen til Grenen Etappe 12 Trail trail 54km Flande, DNK 14 May Austria Backyard Ultra - Ternberg Trail Timed trail 50km Ternberg, AUT 14 May Grüntalultra Trail trail 50km Freudenstadt-Grüntal, DEU 14 May Ottarsloppet Ultra - 46K Trail trail 46km Ottarsborg, Husby, SWE ↑511m 14 May Ottarsloppet Ultra - 69K Trail trail 69km Ottarsborg, Husby, SWE ↑763m 14 May Tjomsevannet Rundt Backyard Timed trail 50km Søgne, NOR 14 May Viadal Ultra 48h Timed trail 50km Förslöv, SWE ↑3m 14 May Viadal Ultra 6h Timed trail 50km Förslöv, SWE ↑3m 14 May Witiker Backyard Ultra Timed trail 50km Zürich, CHE 14 May X100 Rund um Münster Ultramarathon Trail trail 59km Münster, DEU 15 May 10 Walk of Pain Timed trail 50km Gagnef, SWE 15 May 34e Ronde van Aruba Trail trail 72km Aruba, ARU 15 May Backyard Ultra Jabłonna Timed trail 50km Jabłonna, POL 15 May No Time to Die Frontyard Ultra Timed trail 50km Adelaide, SA, AUS 15 May Ultra-Trail Australia by UTMB - UTA Miler, UTA100 & UTA50 Trail trail 50km Katoomba, AUS 15 May Viadal Ultra 24h Timed trail 50km Förslöv, SWE ↑3m 16 May 11^ Garda Trentino Trail (GTT) Trail trail 62km Riva del Garda, ITA 16 May 12-uursloop Terwille Timed trail 50km Tynaarlo, NLD 16 May 3 Days at the Fair 12 Hour Race Timed trail 50km Augusta, NJ, USA 16 May 3 Days at the Fair 50 Km Race Trail trail 50km Augusta, NJ, USA 16 May 3 Days at the Fair 6 Hour Race Timed trail 50km Augusta, NJ, USA 16 May 3 Vistakulle Backyard Timed trail 50km Vistakulle, SWE 16 May 6-uursloop Terwille Timed trail 50km Tynaarlo, NLD 16 May 8ème Volvic Volcanic Expérience - Trail Chaîne des Puys Trail trail 112km / 70mi Volvic, FRA 16 May 8ème Volvic Volcanic Expérience - Trail Impluvium de Volvic Trail trail 46km Volvic, FRA 16 May 8ème Volvic Volcanic Expérience - Trail Terra Volcana Trail trail 82km Volvic, FRA 16 May 9 Muses ultra race - Melpomene Trail trail 59km Agia Anna Viotia, GRC 16 May A&M Ultra 52km Trail trail 52km Nokia, FIN 16 May A&M Ultra 73km Trail trail 73km Nokia, FIN 16 May ALB-Traum 100 Trail trail 115km / 71mi Geislingen, DEU 16 May Armed Forces Endurance Run Timed trail 50km Kendallville, IN, USA 16 May Berryman 50 Mile Trail trail 80km Potosi, MO, USA 16 May Bishop High Sierra Ultramarathons 100 km Trail trail 100km / 62mi Bishop, CA, USA 16 May Bishop High Sierra Ultramarathons 50 Miles Trail trail 80km Bishop, CA, USA 16 May Bishop High Sierra Ultramarathons 55 km Trail trail 55km Bishop, CA, USA 16 May Bone Yard Trail Race Trail trail 50km Brookhaven, MS, USA 16 May Born to Run Ultra 30 Mile Marathon Trail trail 48km Los Olivos, CA, USA 16 May Butterfield Backyard Timed trail 50km Herriman, UT, USA 16 May Chicago 7-11 Hour Endurance Ru Timed trail 50km Willow Springs, IL, USA 16 May Dances with Dirt - Gnaw Bone 50 Mile Ultra Trail trail 80km Nashville, IN, USA 16 May Dances with Dirt - Gnaw Bone 50 km Ultra Trail trail 50km Nashville, IN, USA 16 May Death by 5k Waterloo Trail trail 50km Waterloo, IA, USA 16 May Dirty Turtle 50k Trail trail 50km Bremerton, WA, USA 16 May Driftless Endurance -Rumble on the Ridge Timed trail 50km Arena, WI, USA 16 May ENDURE 12 Hour Race Timed trail 50km Divide, CO, USA 16 May Euchidios Athlos Plataea-Delphi Trail trail 107.5km / 67mi Plataea, GRC 16 May Fishtail 100 Trail trail 100km / 62mi Pokhara, NEP 16 May Forgotten Forest 9 Hour Ultra Marathon Timed trail 50km Stratford, CT, USA 16 May Free Spirit 50 K Trail trail 50km Leyden, MA, USA 16 May Galena Sky Trail Race 4 Hours Timed trail 50km Galena, IL, USA 16 May Galena Sky Trail Race 8 Hours Timed trail 50km Galena, IL, USA 16 May HALB-Traum Trail trail 57km Geislingen, DEU 16 May Harter Knochen Ultra Trail trail 50km Ettlingen, DEU 16 May High Lea 12 Hour Race Timed trail 50km Richfield, OH, USA 16 May High Lea 6 Hour Race Timed trail 50km Richfield, OH, USA 16 May HochwaldUltraTrail Trail trail 68km Osburg, DEU 16 May Hueston Woods Trail Race Timed trail 50km College Corner, OH, USA 16 May Iron Will Backroads 50 Km Trail trail 50km Enterprise, KS, USA 16 May Janda Baik Ultra 50 Km Trail trail 50km Bentong, Pahang, MYS 16 May Katzen Sprungs Backyard Ultra Timed trail 50km Bremen, DEU 16 May Kendal to Preston Ultra 50 Trail trail 80km Kendal, GBR 16 May Kilsbergen Ut & Tillbaka Trail trail 54km Ånnaboda, SWE 16 May Kokkola Ultra Run 12h Timed trail 50km Kokkola, FIN 16 May Kokkola Ultra Run 6h Timed trail 50km Kokkola, FIN 16 May Manchester to Monadnock Ultramarathon Trail trail 88km Manchester, NH, USA 16 May Mayapple 50 Mile Trail Run Trail trail 80km Millburn, NJ, USA 16 May Mayapple 50 km Trail Run Trail trail 50km Millburn, NJ, USA 16 May Napa Wilderness Trail Runs Trail trail 50km Napa, CA, USA 16 May ONeill Park Trail Races Trail trail 50km Trabuco Canyon, CA, USA 16 May Possums Revenge 52 Mile Race Trail trail 84km Grafford, TX, USA 16 May Possums Revenge 56 km Race Trail trail 56km Grafford, TX, USA 16 May Possums Revenge 69 Mile Race Trail trail 111km / 69mi Grafford, TX, USA 16 May Pound the Mound 50km Race Trail trail 50km Luverne, MN, USA 16 May Quest for the Crest 50k Trail trail 50km Burnsville, NC, USA 16 May Race The Tide Trail trail 47km Mothecombe, GBR 16 May Reesor 50 Trail trail 80km Maple Creek, SK, CAN 16 May Rudawy Wiosenny Festiwal Biegowy Trail trail 63km Miedzianka, POL 16 May Run for Amma 50 Km Trail trail 50km Portola Valley, CA, USA 16 May Schwarzach Trail Salzburgerland 47 Km Trail trail 47km Schwarzach im Pongau, AUT 16 May Silver State 50 Mile Trail trail 80km Reno, NV, USA 16 May Silver State 50 km Trail trail 50km Reno, NV, USA 16 May Stone Everest ATL Timed trail 50km Stone Mountain, GA, USA 16 May Superior Spring 50 km Trail Race Trail trail 50km Lutsen, MN, USA 16 May Tails & Trails Trail trail 50km Pittsfield, MA, USA 16 May Tie Dye 50k Trail trail 50km Yellow Springs, OH, USA 16 May Tillamook Burn Trail Run 50 Mile Trail trail 80km Tillamook State Forest, OR, USA 16 May Trent Valley Ultra Marathon Trail trail 50km Cromwell, GBR 16 May UD Ultra Desafio Morungaba 50km Trail trail 50km Morungaba, SP, BRA 16 May Ultra-Trail Snowdonia - 50km Trail trail 55km Llanberis, GBR 16 May Uppsala 6-timmars Timed trail 50km Uppsala, SWE 16 May Wassermühlen-Ultramarathon Rulle Trail trail 46.8km Wallenhorst-Rulle, DEU 16 May Winona Forests Chase the Day 24 Hour Trail Ultra Timed trail 50km Mannsville, NY, USA 16 May XIV Gran Raid delle Prealpi Trevigiane - GR60 Trail trail 60km Segusino, ITA 16 May XIV Gran Raid delle Prealpi Trevigiane - GR80 Trail trail 80km Segusino, ITA 17 May 4ème Trail Alsace Grand Est by UTMB - Trail des Celtes Trail trail 47km Barr, FRA 17 May 800 Heroes - Meishan 100Km Trail trail 100.8km / 63mi Meishan Township, TWN 17 May 800 Heroes - Meishan 50Km Trail trail 49.6km Meishan Township, TWN 17 May 9ª Nit Ultra Run - 6h Timed trail 50km Niteroi, BRA 17 May Cftt Shennongjia Mountain Trail Race Trail trail 80km Shennongjia Forestry District, CHN 17 May Cmon Armageddon Trail trail 50km West Milford, NJ, USA 17 May Corral Canyon Trail Scramble Trail trail 50km Campo, CA, USA 17 May First State 50 km Trail Race Trail trail 50km Wilmington, DE, USA 17 May Five Rivers Ultra 50km Trail trail 50km Shotley, GBR 17 May Grüner Ring Hannover Trail trail 80km Hannover, DEU 17 May Grüner Ring Hannover 62km Trail trail 62km Hannover, DEU 17 May Guernsey Ultra GU36 Trail trail 58km St. Peter Port, GBR 17 May Highball to Thurmond Ultra 50 Km Trail trail 50km Thurmond, WV, USA 17 May Highball to Thurmond Ultra 50 Km Ruck Trail trail 50km Thurmond, WV, USA 17 May Highball to Thurmond Ultra 50 Miles Trail trail 80km Thurmond, WV, USA 17 May Highball to Thurmond Ultra 50 Miles 12.75h Trail trail 80km Thurmond, WV, USA 17 May Kandern Trail Masters Trail trail 65km Kandern, DEU 17 May Long Trail dei Monti Simbruini Trail trail 48km Subiaco (RM), ITA 17 May Loop the Lemur at the Ross Park Zoo Timed trail 50km Binghamton, NY, USA 17 May Mountain Wow 56km Trail trail 56km Guoxing Township, TWN 17 May Ram Party Trail trail 60km Colorado Springs, CO, USA 17 May Rock-On Lake Perry 50K Trail Run Trail trail 50km Meriden, KS, USA 17 May The Keswick 50K Trail Race Ultra Trail trail 50km Keswick, GBR 17 May Tillamook Burn Trail Run 50 Km Trail trail 50km Tillamook State Forest, OR, USA 17 May Trail du Coureur des Bois de Duchesnay Trail trail 48km la-Jacques-Cartier, CAN 17 May XRUN - Wyspowy Trail Trail trail 50km Limanowa, POL 22 May Coalfields Backyard Ultra Timed trail 50km Williamson, WV, USA 22 May Sydrehs Back to Frontyard Ultra Timed trail 50km Herdsman, WA, AUS 22 May Uka Pain - Int nod joll 100 miles Trail trail 170km / 106mi Älvdalen, SWE ↑4,558m 22 May Uka Pain - Welest fomm painas 100km Trail trail 102km / 63mi Älvdalen, SWE ↑2,907m 23 May 16 Trail del Monte Soglio - Gir Lung Trail trail 73km Forno Canavese, TO, ITA 23 May 2 Vikingbackyard Timed trail 50km Upplands Väsby, SWE 23 May 24h Pfingstlauf Ruhrschleife Timed trail 50km Arnsberg, DEU 23 May 3ème Le Grand Raid 73 - Le Bauju Trail trail 50km Cruet, FRA 23 May 7 Frykstahöjden Backyard Ultra 12H Timed trail 50km Kil, SWE 23 May Adelsberg Backyard Ultra Timed trail 50km Chemnitz, DEU 23 May Back 9 12 Hour Endurance Run Timed trail 50km Copper Harbor, MI, USA 23 May Backyard Ultra Vänge Timed trail 50km Vänge, SWE 23 May Baturu Trail Mt. Guanmen 50km Business College Trail trail 50km Benxi, CHN 23 May Beer Backyard Ultra Timed trail 50km Lysá nad Labem, CZE 23 May Bubbletown What the Duck Ultra Timed trail 50km Boiling Springs, PA, USA 23 May Bunk House Trail Runs Trail trail 50km Dousman, WI, USA 23 May DL50 Ultra Endurance Race Trail trail 50km Dalian, Liaoning, CHN 23 May Drummer Hill Trail Race Trail trail 50km Keene, NH, USA 23 May Farmmageddon 12h Timed trail 50km Buntingford, GBR 23 May Fools 8 Hour Trail Run Timed trail 50km Cuyahoga Falls, OH, USA 23 May Girona RunThrough Trail 103km Trail trail 100km / 62mi Girona, ESP 23 May Girona RunThrough Trail 50km Trail trail 50km Girona, ESP 23 May Glasriket Ultra Trail trail 50km Mundekulla, SWE ↑423m 23 May High Hope Endurance Run 100km Saturday Run Trail trail 100km / 62mi Glen Rose, TX, USA 23 May High Hope Endurance Run 50km Saturday Run Trail trail 50km Glen Rose, TX, USA 23 May Highland Forest 1-2-3 Trail trail 48km Fabius, NY, USA 23 May Jaga-Kora Horbki 70 Trail trail 69km Rymanow Zdroj, POL 23 May Jaga-Kora Kurier Trail trail 46km Rymanow Zdroj, POL 23 May Jaga-Kora Orzel 105 Trail trail 103km / 64mi Rymanow Zdroj, POL 23 May Johnston Woods Trails Festival Timed trail 50km Cleveland, TN, USA 23 May Johnston Woods Trails Festival (night) Timed trail 50km Cleveland, TN, USA 23 May Le Grand Raid 73 Trail trail 76km Cruet, FRA 23 May Leavenworth Trail Fest Trail trail 55km Leavenworth, WA, USA 23 May Louisvilles Loven the Hills (LLTH 50K) Trail trail 50km Fairdale, KY, USA 23 May May Madness 50K Trail trail 50km Hoffman, NC, USA 23 May Nanny Goat 12 Hour Race Timed trail 50km Riverside, CA, USA 23 May Nanny Goat 6 Hour Race Timed trail 50km Riverside, CA, USA 23 May Non Aided Schwäbischer Wald Ultra Trail (NASWUT) Trail trail 54km Spiegelberg-Vorderbüchelberg, DEU 23 May Rivers Edge Trail Race Trail trail 50km Georgetown, TX, USA 23 May Rykowisko Ultra Trail - Rześki Chrapy Trail trail 50km Gorzewo, POL 23 May S24H Timisoara - 12h Timed trail 50km Timisoara, ROU 23 May S24H Timisoara - 6h Timed trail 50km Timisoara, ROU 23 May Samsons Revenge Trail trail 55km Estes Park, CO, USA 23 May Schipholloop (Ronde om de Haarlemmermeer) Trail trail 60km Amsterdam Airport Schiphol, NLD 23 May Selkirk Slacker 12hr Ultra Trail Timed trail 50km Golden, BC, CAN 23 May Selkirk Slacker 8hr Ultra Trail Timed trail 50km Golden, BC, CAN 23 May Sliabh Liag 50km Trail trail 50km Teileann, Donegal, IRL 23 May Sri Chinmoy 13 Hour Race Timed trail 50km Seattle, WA, USA 23 May Sri Chinmoy 7 Hour Race Timed trail 50km Seattle, WA, USA 23 May Suffer on Centennial Trail trail 100km / 62mi West Hawk Lake, MB, CAN 23 May Sugar Badger 50 Mile Race Trail trail 80km Belleville, WI, USA 23 May Sugar Badger 50 km Race Trail trail 50km Belleville, WI, USA 23 May Sulphur Springs Trail Run 50 Mile Trail trail 80km Ancaster, ON, CAN 23 May Sulphur Springs Trail Run 50km Trail trail 50km Ancaster, ON, CAN 23 May The Freedom 50 Trail trail 80km Puyallup, WA, USA 23 May Trail Festival at Pineland Farms (Gunstock TrailFest) Trail trail 100km / 62mi New Gloucester, ME, USA 23 May Uka Pain 52km Trail trail 52km Älvdalen, SWE ↑1,437m 23 May Ultra-Trail Malopolska - UTM45 Trail trail 49km Mszana Dolna, POL 23 May Ultra-Trail Malopolska - UTM64 Trail trail 65km Mszana Dolna, POL 23 May Vassøy Backyard Ultra Timed trail 50km Vassøy, NOR 23 May Youzhou Ultra Trail 60 Trail trail 58km Huailai County, CHN 24 May 12h Pfingstlauf Ruhrschleife Timed trail 50km Arnsberg, DEU 24 May 6h Pfingstlauf Ruhrschleife Timed trail 50km Arnsberg, DEU 24 May Angles Way Ultra 100k Trail trail 100km / 62mi Diss, GBR 24 May Angles Way Ultra 50k Trail trail 50km Shipmeadow, GBR 24 May Den Stygge Andungen ultraløp Trail trail 65km Hørde, NOR 24 May Flagstaff Doggie Dash & Ultra Bash 12h Timed trail 50km Flagstaff, AZ, USA 24 May Flagstaff Doggie Dash & Ultra Bash 6h Timed trail 50km Flagstaff, AZ, USA 24 May Gontyniec Ultra Trail Trail trail 52km Chodzież, POL 24 May High Hope Endurance Run 100km Sunday Run Trail trail 100km / 62mi Glen Rose, TX, USA 24 May High Hope Endurance Run 50km Sunday Run Trail trail 50km Glen Rose, TX, USA 24 May Holy Cowans Gap 50k+ Trail trail 50km Cowans Gap State Park, PA, USA 24 May Pigtails Challenge 50 Km Trail trail 50km Renton, WA, USA 24 May Queen of the Suburbs Ultra Trail trail 50km Ealing, London, GBR 24 May Rocky Mountain 50k Trail trail 50km Laramie, WY, USA 24 May Schloss Corvey Ultramarathon Trail trail 50km Höxter, DEU 24 May Sweat, Swat n Swear! 50 Km Run Trail trail 50km Inverness, FL, USA 24 May TorTour de Ruhr - 100km Nonstop Trail trail 100km / 62mi Herdecke, DEU 24 May Woodlands Trail Run Trail trail 50km Greenvale, VIC, AUS 25 May Godelheimer See Ultramarathon Trail trail 50km Höxter, DEU 25 May Stumptown Trail Run 50K Trail trail 50km Portland, OR, USA 28 May S:t Hans Extreme Timed trail 50km Lund, SWE 29 May 2 Öland Lighthouse Challenge - 50 miles Trail trail 80km Fyren Långe Jan, SWE 29 May 3 Öland Lighthouse Challenge - 50 km Trail trail 50km Långe Jan, Ottenby, Öland, SWE 29 May 4 Öland Lighthouse Challenge - 100 miles Trail trail 161km / 100mi Långe Jan, Öland, SWE 29 May Lofoten Ultra Trail 100 Miles Trail trail 166km / 103mi Kirkefjorden, Moskenes, NOR 29 May Mount Everest 70 km Extreme Ultra Marathon Trail trail 70km Khumbu Valley, NEP 29 May UltraPark Weekend 24h Timed trail 50km Pabianice, POL 29 May Ultrapark Weekend 48h Timed trail 50km Pabianice, POL 29 May Yankee Springs 100 km Trail Run Trail trail 100km / 62mi Middleville, MI, USA 29 May Yankee Springs 50 km Trail Run Trail trail 50km Middleville, MI, USA 30 May 11 Borås Ultra Marathon 50km Trail trail 50km Hindås, SWE 30 May 1º Mons Ultra Trail - Urubici Trail trail 50km Urubici, SC, BRA 30 May 24 timer ved havet Sæby - open race Timed trail 50km Saeby, DNK 30 May 8ème Swiss Canyon Trail 51K Trail trail 52km Couvet, CHE 30 May Austria Backyard Ultra - Loosdorf Trail Timed trail 50km Loosdorf, AUT 30 May BUFF-CEUS 12h European Cup Timed trail 50km Balatonfüred, HUN 30 May Beat the Sunset 50km Trail trail 50km Maidenhead, GBR 30 May Blackfoot Ultra 100 Km Trail trail 100km / 62mi Cooking Blackfoot Lake, AB, CAN 30 May Blackfoot Ultra 50 Km Trail trail 50km Cooking Blackfoot Lake, AB, CAN 30 May Blackfoot Ultra 50 Mile Trail trail 80km Cooking Blackfoot Lake, AB, CAN 30 May CLUT 70 – Cento Laghi Ultimate Trail Trail trail 70km Corniglio (PR), ITA 30 May Calero Run 50K Trail trail 50km San Jose, CA, USA 30 May Cayuga Trails 50 Mile Race Trail trail 80km Ithaca, NY, USA 30 May Cayuga Trails 50 km Race Trail trail 50km Ithaca, NY, USA 30 May Chesterfield Gorge 100 Km Ultra Race Trail trail 100km / 62mi West Chesterfield, MA, USA 30 May Chesterfield Gorge 50 Km Ultra Race Trail trail 50km West Chesterfield, MA, USA 30 May Chesterfield Gorge 50 Mile Ultra Race Trail trail 80km West Chesterfield, MA, USA 30 May Cinderella 50 km Spring Trail Run Trail trail 50km Oakland, CA, USA 30 May Coldwater in Your Veins Timed trail 50km North Ogden, UT, USA 30 May Connors Claims 50 Miles Ultra Trail trail 80km Stockton, UT, USA 30 May Connors Claims 50 km Ultra Trail trail 50km Stockton, UT, USA 30 May Dead Cow Gully Backyard Ultra Timed trail 50km Nanango, QLD, AUS 30 May Echo Valley 50 Km Trail Run Sunday Trail trail 50km Chelan, WA, USA 30 May EcoTrail of Oslo 50 km Trail trail 50km Oslo, NOR 30 May EcoTrail of Oslo 80 km Trail trail 80km Oslo, NOR 30 May Elsa Chicken Plucker Backyard Ultra Timed trail 50km Charleston, IL, USA 30 May Great Mansfield Outdoors 50km Trail trail 50km Mulmur, ON, CAN 30 May High Noon Showdown Timed trail 50km Enoree, SC, USA 30 May Highland Charity Backyard Ultra Run Timed trail 50km Sävsjö, SWE 30 May Hotfoot Hamster 12 Hour Run Timed trail 50km Buckeye, AZ, USA 30 May Hotfoot Hamster 6 Hour Run Timed trail 50km Buckeye, AZ, USA 30 May Kettlefoot Trail trail 50km Mountain City, TN, USA 30 May Kings Backyard Ultra Timed trail 50km Whangarei, NZL 30 May Lake To Ocean 100K Trail trail 100km / 62mi Port Mayaka, FL, USA 30 May Lofoten Ultra Trail 50 Miles Trail trail 80km Vestvågøy, Lofoten, NOR 30 May Lofoten Ultra Trail Marathon 48km Trail trail 48km Vestvågøy, Lofoten, NOR 30 May Mohican Trail 50 Mile Trail trail 80km Loudonville, OH, USA 30 May Momentus Backyard Ultra Timed trail 50km Monroe, NC, USA 30 May Mountain Ultra Trail by UTMB - MUT 60 Trail trail 58km George, ZAF 30 May North Fork 50 Mile Trail Race Trail trail 80km Pine, CO, USA 30 May North Fork 50 km Trail Race Trail trail 50km Pine, CO, USA 30 May Pacifico Ultra Trail trail 50km Palmdale, CA, USA 30 May Pedra Grande Ultra Trail Challenge Trail trail 80km Atibaia, SP, BRA 30 May Roztocze Ultra Race 120km Trail trail 120km / 75mi Krasnobrod, POL 30 May Run Comfy Numb Trail Race Trail trail 50km Whistler, BC, CAN 30 May Run for Water Trail Trail trail 50km Abbotsford, CAN 30 May Rund um Schloss Holte 50k (RUMS) Trail trail 50km Schloss Holte - Stukenbrock, DEU 30 May Smith Rock Classic 50 Miles Trail trail 80km Terrebonne, OR, USA 30 May Smith Rock Classic 50K Trail trail 50km Terrebonne, OR, USA 30 May Sonoma Coast Trail Runs Trail trail 50km Duncans Mills, CA, USA 30 May Sooke Hills 50k Trail trail 50km Sooke, BC, CAN 30 May Spence Mountain Run Trail trail 50km Klamath Falls, OR, USA 30 May Sri Chinmoy 100km-Lauf Amsterdam Trail trail 100km / 62mi Amstelveen, NLD 30 May Sri Chinmoy 50 km-Lauf Amsterdam Trail trail 50km Amstelveen, NLD 30 May Sri Chinmoy 6 Hour Race Skopje Timed trail 50km Skopje, MKD 30 May Sri Chinmoy Self-Transcendence 100km-Lauf Samorin Trail trail 100km / 62mi Samorin, SVK 30 May Sri Chinmoy Self-Transcendence 12-Std.-Lauf Samorin Timed trail 50km Samorin, SVK 30 May Sri Chinmoy Self-Transcendence 6-Std.-Lauf Samorin Timed trail 50km Samorin, SVK 30 May The Full Mo 50 km Race Trail trail 50km Sheridan, IN, USA 30 May The Sticks 12 Hour Races Timed trail 50km Norton, KS, USA 30 May The Sticks 6 Hour Races Timed trail 50km Norton, KS, USA 30 May The Telford T50 Trail Run Trail trail 80km Telford, GBR 30 May Trail Run Australia - Sunshine Coast 24hr Timed trail 50km Landsborough, QLD, AUS 30 May UHUT UtrechtseHeuvelUltratrail - Rhenen Loop Trail trail 50km Leersum, NLD 30 May UHUT UtrechtseHeuvelUltratrail 100km Trail trail 100km / 62mi Leersum, NLD 30 May UHUT UtrechtseHeuvelUltratrail 75 km Trail trail 75km Leersum, NLD 30 May Ultra Guaraqueçaba 126k Trail trail 126km / 78mi Guaraquecaba, PR, BRA 30 May Ultra Guaraqueçaba 52k Trail trail 52km Guaraquecaba, PR, BRA 30 May Ultra Guaraqueçaba 80k Trail trail 80km Guaraquecaba, PR, BRA 30 May UltraPark Weekend 100km Trail trail 100km / 62mi Pabianice, POL 30 May VAM12 Timed trail 50km Wijster, NLD 30 May VAM8 Timed trail 50km Wijster, NLD 30 May Weld Your Mettle Ultra Marathon Trail trail 161km / 100mi Windsor, CO, USA 30 May Worlds End Ultramarathon 100K Trail trail 100km / 62mi Forksville, PA, USA 30 May Worlds End Ultramarathon 50K Trail trail 50km Forksville, PA, USA 31 May 6 Stundenlauf in Weesenstein Timed trail 50km Weesenstein, DEU 31 May BUFF-CEUS 6h European Cup Timed trail 50km Balatonfüred, HUN 31 May Norn Iron 100 Mini Trail trail 60km Dungiven, GBR 31 May Rotvollfjæra Frontyard Ultra Trail trail 81km Trondheim, NOR 31 May Ruddy Rothwells Cakeathon Trail trail 48km Leeds, GBR 31 May SN Trail Run Trail trail 45km Spoleto (PG), ITA 31 May UHUT UtrechtseHeuvelUltratrail - Doorn Loop Trail trail 50km Leersum, NLD 31 May Urwaldsteig-Ultratrail Trail trail 66km Waldeck, DEU 31 May Xtratrail Lavaux Trail trail 50km Lutry, CHE 5 May Die Bergischen 5 Etappe 1 Trail trail 50km Wermelskirchen, DEU 6 May Die Bergischen 5 Etappe 2 Trail trail 60km Wermelskirchen, DEU 7 May Die Bergischen 5 Etappe 3 Trail trail 70km Wermelskirchen, DEU 7 May Die Bergischen 5 Kindergartenrunde Etappe 3 Trail trail 45km Wermelskirchen, DEU 8 May Die Bergischen 5 Etappe 4 Trail trail 50km Wermelskirchen, DEU 8 May Riesenbecker 6 Stundenlauf Timed trail 50km Rheine, DEU 9 May Die Bergischen 5 Etappe 5 Trail trail 45km Wermelskirchen, DEU 15 May 2 SanktPauli 50 Trail trail 51km Tostedt, DEU 15 May 2 SanktPauli100 Trail trail 100km / 62mi Rotenburg/Wümme, DEU 15 May 3 Bremen - Sankt Pauli 100mi Trail trail 161km / 100mi Bremen, DEU

June

1 Jun 50 km di Pantelleria Trail trail 50km Pantelleria, ITA 4 Jun Bieg Rzeźnika Trail trail 84km Cisna, POL 4 Jun IronHike Series - Spring 26 Trail trail 99km Cornwall, CT, USA 4 Jun Ultra do Vulcão 350km Trail trail 350km / 218mi Poços de Caldas, MG, BRA 4 Jun Vom See zum Schloss Ultramarathon Trail trail 46km Münster, DEU 5 Jun Base Ultra 100km Trail trail 100km / 62mi Ibicoara, Ba, BRA 5 Jun Jernbruket Backyard Ultra Timed trail 50km Floda, SWE 5 Jun MoMoFo 100k Trail trail 100km / 62mi Martinsville, USA 5 Jun Neveresting Hafjell, 36h Timed trail 50km Hafjell, NOR 5 Jun Tsalteshi Backyard Ultra Timed trail 50km Soldotna, AK, USA 5 Jun Ultra do Vulcão 100km Trail trail 100km / 62mi Poços de Caldas, MG, BRA 5 Jun Westerwälder Backyard-Ultra Timed trail 50km Höchstenbach, DEU 6 Jun 1 Rönninge 6h Timed trail 50km Rönninge, SWE 6 Jun 3 Lierskogen 6-timers Timed trail 50km Lierskogen, NOR 6 Jun 5^ La Ultra di Saronno - 100 km Trail trail 100km / 62mi Saronno, ITA 6 Jun 5^ La Ultra di Saronno - 24h Timed trail 50km Saronno, ITA 6 Jun 5º Ultra 100km BA-052 Trail trail 100km / 62mi Novo Mundo, BA, BRA 6 Jun 5º Ultra 100km BA-052 50km Trail trail 50km Novo Mundo, BA, BRA 6 Jun 5º Ultra 100km BA-052 85km Trail trail 75km Novo Mundo, BA, BRA 6 Jun 7 Granbäcken Backyard 12 timmar Timed trail 50km Borås, SWE 6 Jun 9 Björnfrossa Ultramaraton Trail trail 65km Sandviken, SWE 6 Jun 9 Hours for 9 Lives Ultra Race Timed trail 50km Victor, NY, USA 6 Jun Adelaide 24 hour race Timed trail 50km Adelaide, SA, AUS 6 Jun Alaska Endurance 6 Hour Trail Run Timed trail 50km Fairbanks, AK, USA 6 Jun Backyard Nonsense Timed trail 50km Brighton, WI, USA 6 Jun Backyard Ultra Piekiełki Timed trail 50km Starogard Gdanski, POL 6 Jun Base Ultra 60km Trail trail 60km Ibicoara, Ba, BRA 6 Jun Bashore Bash 12 Hr Timed trail 50km Jonestown, PA, USA 6 Jun Bashore Bash 6 Hr Timed trail 50km Jonestown, PA, USA 6 Jun Cape2Cape Ultra Marathon 100mi Trail trail 161km / 100mi Augusta, WA, AUS 6 Jun Cape2Cape Ultra Marathon 50mi Trail trail 80km Augusta, WA, AUS 6 Jun Coffs Backyard Ultra Timed trail 50km Coffs Harbour, NSW, AUS 6 Jun Crater 50km Trail Run - Driftless Discovery Trail trail 50km Decorah, IA, USA 6 Jun Dam Yeti 50 Mile Race Trail trail 80km Damascus, VA, USA 6 Jun Dam Yeti 55 km Race Trail trail 55km Damascus, VA, USA 6 Jun Dartmoor Discovery 32 Mile Ultra Trail trail 51km Princetown, GBR 6 Jun Death by Staircase 12hr Timed trail 50km Moreau, NY, USA 6 Jun Death by Staircase 6hr Timed trail 50km Moreau, NY, USA 6 Jun Elijah Bristow 12 Hour Night Run Timed trail 50km Eugene, OR, USA 6 Jun Elijah Bristow 12 Hour Run Timed trail 50km Eugene, OR, USA 6 Jun Elijah Bristow 6 Hour Run Timed trail 50km Eugene, OR, USA 6 Jun Endurancelife Classic Quarter Trail trail 71km Lizard Point, GBR 6 Jun Eversburger Gewässer Ultramarathon Trail trail 45.3km Osnabrück, DEU 6 Jun FANS 12 Hour Run Timed trail 50km Minneapolis, MN, USA 6 Jun FANS 12 Hour Run Walk Timed trail 50km Minneapolis, MN, USA 6 Jun FANS 6 Hour Run Timed trail 50km Minneapolis, MN, USA 6 Jun Hochkönig Ultraks - HK48 Trail trail 48km Maria Alm, AUT 6 Jun Hochkönig Ultraks - HK70 Trail trail 72km Maria Alm, AUT 6 Jun Huron 50 Trail trail 80km Grass Lake, MI, USA 6 Jun Jenaer Backyard Ultra Timed trail 50km Jena, Cospeda, DEU 6 Jun Jurassic Ultramarathon 12horas Timed trail 50km Santa Barbara D'Oeste, SP, BRA 6 Jun Klondike Ultra 100 Km Trail trail 100km / 62mi Edmonton, AB, CAN 6 Jun Klondike Ultra 50 Km Trail trail 50km Edmonton, AB, CAN 6 Jun Kua Ultra Trail trail 70km Storvik, NOR 6 Jun Lake Tye Challenge - 12h Timed trail 50km Monroe, WA, USA 6 Jun Lake Tye Challenge - 6h Timed trail 50km Monroe, WA, USA 6 Jun Linie1629ultra Trail trail 50km Vught, NLD 6 Jun Lochalsh Dirty 30mi Trail trail 48km Glenelg, GBR 6 Jun Lysefjorden Inn Ultramarathon Trail trail 62km Forsand, NOR 6 Jun Maces Hideout 50 Mile Race Trail trail 80km Beulah, CO, USA 6 Jun Marsh Peak Madness Timed trail 50km Lapoint, UT, USA 6 Jun Metahqua 24 Timed trail 50km Chillicothe, OH, USA 6 Jun Mt. Umunhum Ultras - 50 km Trail trail 50km San Jose, California, USA 6 Jun Neveresting Hafjell, 12h Timed trail 50km Hafjell, NOR 6 Jun North Leeds Skyline Trail trail 51km Otley, GBR 6 Jun Orcas Island 50k Trail trail 50km Olga, WA, USA 6 Jun PCT 50 Mile Trail Run Trail trail 80km Pine Valley, CA, USA 6 Jun Phuket 100K Ultra Marathon Trail trail 100km / 62mi Mai khao Talang Phuket, THA 6 Jun Ridge to Rails 50k Trail trail 50km Old Fort, NC, USA 6 Jun Risinge Backyard Ultra Timed trail 50km Risinge Nyadal, Åryd, SWE 6 Jun Rock River Canyon 50K Trail trail 50km Munising, MI, USA 6 Jun Rose Canyon Ultra Trail trail 80km Herriman, UT, USA 6 Jun Sawmill 35 Mile Race Trail trail 62km Mount Charleston, NV, USA 6 Jun Scafell Sky Ultra Trail trail 60km Great Langdale, GBR 6 Jun Scout Mountain 50 Km Ultra Trail Trail trail 50km Pocatello, ID, USA 6 Jun Scout Mountain 50 Miles Ultra Trail Trail trail 80km Pocatello, ID, USA 6 Jun Shadow of the Giants 50K Trail trail 50km Fish Camp, CA, USA 6 Jun Sharlie Shuffle 12 Hour Run Timed trail 50km McCall, ID, USA 6 Jun Sharlie Shuffle 6 Hour Run Timed trail 50km McCall, ID, USA 6 Jun Sognefjord Trail Run 50k Trail trail 50km Kaupanger, NOR 6 Jun Summer Sasquatch 50K Trail trail 50km Lore City, OH, USA 6 Jun Taiwania 100 Ultra Trail Trail trail 100km / 62mi Datong Township, TWN 6 Jun Taiwania 50 Ultra Trail Trail trail 50km Datong Township, TWN 6 Jun Taiwania 80 Ultra Trail Trail trail 75km Datong Township, TWN 6 Jun Texoma Challenge Trail trail 50km Denison, USA 6 Jun The Great Divide Ultra 100km Trail trail 100km / 62mi Divide, CO, USA 6 Jun The Great Divide Ultra Night Run Trail trail 50km Divide, CO, USA 6 Jun The Great Divide Ultra Saturday Run Trail trail 50km Divide, CO, USA 6 Jun The Kan 50km Trail trail 50km Spokane, WA, USA 6 Jun The Longest Day 50km Trail trail 50km Spa, BEL 6 Jun The Vogum - Vale of Glamorgan Ultra Marathon Trail trail 64km Porthcawl, GBR 6 Jun Three Sisters Ultra Festival 12 Hour Run Timed trail 50km Maryville, TN, USA 6 Jun Three Sisters Ultra Festival 6 Hour Run Timed trail 50km Maryville, TN, USA 6 Jun Thunersee Ultramarathon Trail trail 60km Thun, CHE 6 Jun Trail Godefroy Bouillon Trail trail 100km / 62mi Bouillon, BEL 6 Jun Trail Godefroy Bouillon TGB 50 Trail trail 53km Bouillon, BEL 6 Jun Trail Godefroy Bouillon TGB 75 Trail trail 75km Bouillon, BEL 6 Jun Trail La Clinique Du Coureur Trail trail 50km Lac-Beauport, QC, CAN 6 Jun Trail MontanAspe - Raid Aspois Trail trail 60km Bedous, FRA 6 Jun Tsunami Ultra Trail trail 60km Westward Ho!, GBR 6 Jun Ultra Marathon Babia Gora - 6 x Babia Gora Trail trail 75km Lipnica Wielka, POL 6 Jun Ultra Marathon Babia Góra - 4 x Babia Gora Trail trail 55km Lipnica Wielka, POL 6 Jun Ultra do Vulcão 52km Trail trail 52km Poços de Caldas, MG, BRA 6 Jun Vashon Ultramarathon 50k Trail trail 50km Vashon Island, WA, USA 6 Jun War Eagle 50K Trail trail 50km Rogers, AR, USA 6 Jun XV Los Montes de Vitoria - Gasteizko Mendiak Trail trail 63km Uribarri-Jauregi, ESP 7 Jun 5^ La Ultra di Saronno - 6h Timed trail 50km Saronno, ITA 7 Jun Hiawatha Trail Run Trail trail 50km Taft, MT, USA 7 Jun Kulkiathlon Trail trail 72km Markranstädt, DEU 7 Jun Schnadegang Rund um Lüdenscheid Trail trail 55km Schalksmühle, DEU 7 Jun Storm the Woods - Mason Run at Chester Woods Trail trail 50km Rochester, MN, USA 7 Jun The Great Divide Ultra Sunday Run Trail trail 50km Divide, CO, USA 7 Jun Vestfold Historic Ultra Trail (VHUT) 50km Trail trail 50km Våle, NOR 12 Jun 13^ Dolomiti Extreme Trail 55km Trail trail 55km Val di Zoldo, ITA 12 Jun Backyard Ceará Timed trail 50km Maranguape, CE, BRA 12 Jun Heat Wave 6/12/24 Timed trail 50km Rose Hill, KS, USA 12 Jun Heat Wave 6/12/24 (night) Timed trail 50km Rose Hill, KS, USA 13 Jun 1 Way Ticket Run Timed trail 50km Tihany, HUN 13 Jun 11 Öland Ultra Trail Trail trail 50km Böda Sand, SWE 13 Jun 16 UltraBirken 60 km løp Trail trail 60km Ringsaker, Sjusjøen, NOR 13 Jun 4 Nalta Backyard Ultra (NBU) Timed trail 50km Piteå, SWE 13 Jun 5^ Dolomiti Extreme Trail 72 km Trail trail 75km Val di Zoldo, ITA 13 Jun 6 The Alpaca Race 106 km Trail trail 104km / 65mi Göteborg, SWE 13 Jun 6ème Trail 100 Andorra by UTMB - Trail 50K Trail trail 50km Ordino, AND 13 Jun 9 EcoTrail Stockholm 80 km Trail trail 80km Stockholm, SWE 13 Jun Backyard Larvik Timed trail 50km Larvik, NOR 13 Jun Barr Lake Trail trail 50km Brighton, CO, USA 13 Jun Beisfjord backyard Ultra Timed trail 50km Narvik, NOR 13 Jun Bewl Water Ultra 37mi Trail trail 60km Lamberhurst, GBR 13 Jun Biegi w Rogoźniku Trail trail 104km / 65mi Rogoźnik, POL 13 Jun Borne To Run 12h Spenden-Lauf Timed trail 50km Unna, DEU 13 Jun Borne To Run 6h Spenden-Lauf Timed trail 50km Unna, DEU 13 Jun Cairngorms Ultra Trail Trail trail 60km Braemar, GBR 13 Jun Cotter Bridge Ultra Timed trail 50km Cotter, AR, USA 13 Jun DUD Ultra 100km Trail trail 100km / 62mi Duderstadt, DEU 13 Jun DUD Ultra 50km Trail trail 50km Duderstadt, DEU 13 Jun DUD Ultra 70km Trail trail 70km Duderstadt, DEU 13 Jun Dances with Dirt - Hell 50K Ultra Trail trail 50km Hell, MI, USA 13 Jun Dances with Dirt - Hell 50M Ultra Trail trail 80km Hell, MI, USA 13 Jun EcoTrail Stockholm 45 km Trail trail 45.3km Stockholm, SWE 13 Jun Edge Hill Trail Race Trail trail 50km Ashfield, MA, USA 13 Jun Fire Trail Running Festival Trail trail 50km Spring Branch, TX, USA 13 Jun Fischland-Darß-Zingst-Ultramarathon (FDZU) Trail trail 117km / 73mi Ribnitz-Damgarten, DEU 13 Jun Granan Backyard Ultra Timed trail 50km Brålanda, Granan, SWE 13 Jun Gulch Countdown - Last Man Standing Timed trail 50km Mukilteo, WA, USA 13 Jun Hell Løpefestival 12h Timed trail 50km Stjørdal, NOR 13 Jun Hell Løpefestival 24h Timed trail 50km Stjørdal, NOR 13 Jun Hell Løpefestival 6h Timed trail 50km Stjørdal, NOR 13 Jun Holcomb Valley 33 Mile Trail trail 53km Big Bear Lake, CA, USA 13 Jun Kaniksu Trail Runs - 50 Km Trail trail 50km Frater Lake, WA, USA 13 Jun Kaniksu Trail Runs - 50 Miles Trail trail 80km Frater Lake, WA, USA 13 Jun Kaniksu Trail Runs - 50 Miles Ruck Trail trail 80km Frater Lake, WA, USA 13 Jun Kettle Moraine 50 km Endurance Run Trail trail 50km North Prairie, WI, USA 13 Jun Koasa-55-Panorama-Trail Trail trail 55km Ebbs, AUT 13 Jun Last Human Standing - RI Timed trail 50km West Greenwich, RI, USA 13 Jun Laurel Highlands 50 km Ultra Trail trail 50km Ohiopyle, PA, USA 13 Jun Longest Day Race Trail trail 100km / 62mi Travelers Rest, SC, USA 13 Jun Mazowiecki Ultra Skrocz Trail trail 53km Lochow, POL 13 Jun McKenzie River 50 km Trail Run Trail trail 50km Blue River, OR, USA 13 Jun North Sun Ultra Trail trail 50km Edmonton, CAN 13 Jun Notos Ultra Trail Trail trail 65km Victoriaville, CAN 13 Jun Nøsen Hundreds Ultramarathon - 100km Trail trail 103km / 64mi Nøsen, NOR 13 Jun Nøsen Hundreds Ultramarathon - 50km Trail trail 51km Nøsen, NOR 13 Jun Osnabrücker Ringweg Ultramarathon Trail trail 70km Osnabrück, DEU 13 Jun Rainbow Trail Run 50km Trail trail 50km Alliston, ON, CAN 13 Jun Rainbow Trail Run 62km Trail trail 62km Alliston, ON, CAN 13 Jun Ringerike 6-timers Timed trail 50km Hønefoss, NOR 13 Jun Rondom Stad Trail trail 64km Sint Annen, NLD 13 Jun RÅLÅNGT - Harta 50mi Trail trail 80km Umeå, SWE 13 Jun SF Half Day 12h Timed trail 50km San Francisco, CA, USA 13 Jun SF Half Day 6h Timed trail 50km San Francisco, CA, USA 13 Jun Sinks Canyon Rough & Tumble Trail Runs Trail trail 50km Lander, WY, USA 13 Jun Six Hours at The Reservoir Timed trail 50km Ansonia, CT, USA 13 Jun Snow Peaks 50 Mile Trail Run Trail trail 80km Provo, UT, USA 13 Jun Sri Chinmoy 12 Hour Race Rockland Lake Timed trail 50km Valley Cottage, NY, USA 13 Jun Summer Trailfest Ultra 50 km Race Trail trail 50km Laingsburg, MI, USA 13 Jun Survivorfest - 12 Hour A Timed trail 50km Sherwood Park, AB, CAN 13 Jun Survivorfest - 12 Hour B Timed trail 50km Sherwood Park, AB, CAN 13 Jun Survivorfest - 6 Hour A Timed trail 50km Sherwood Park, AB, CAN 13 Jun Survivorfest - 6 Hour B Timed trail 50km Sherwood Park, AB, CAN 13 Jun Table Rock Trail Challenge Timed trail 50km Jamesville, NY, USA 13 Jun Tatra Fest Bieg Trail trail 68km Zakopane, POL 13 Jun The Long Run Backyard Ultra Trail trail 161km / 100mi Fredericton, CAN 13 Jun Thunderbird Warrior Challenge Trail trail 50km Bayfield, WI, USA 13 Jun Wicked Root Revival 50 km Race Trail trail 50km Gastonia, NC, USA 13 Jun Wings of the West Urban Ultra Trail trail 50km Deltona, FL, USA 13 Jun Yandina Five O Trail trail 50km Yandina, QLD, AUS 13 Jun Zawojski Festiwal Biegowy Trail trail 63km Zawoja, POL 13 Jun Ötscher Trail Trail trail 50km Lackenhof, AUT 14 Jun 4 Scilly 60 Trail trail 60km St Marys, Isles of Scilly, GBR 14 Jun 6 The Alpaca Race 53 km Trail trail 52km Göteborg, SWE 14 Jun 6 Trail Rivières et Châteaux Trail trail 45km Saint-Orens-de-Gameville, FRA 14 Jun Comrades Marathon Trail trail 87km Durban, South Africa ↑1,700m 14 Jun Krwiobieg Warszawa Trail trail 50km Warszawa, POL 14 Jun Marys Peak 100k Ultra Trail Race Trail trail 100km / 62mi Blodgett, OR, USA 14 Jun Marys Peak 50k Ultra Trail Race Trail trail 50km Blodgett, OR, USA 14 Jun PTR - Porject Trail Run Trail trail 52km Gravata, PE, BRA 14 Jun Run for fun 12 Stundenlauf Timed trail 50km Marienfeld, DEU 14 Jun Trail du Saint-Jacques by UTMB - Monistrail Trail trail 55km Monistrol-d'Allier, FRA 16 Jun 1 Scilly 60 Trail trail 110km / 68mi St Marys, Isles of Scilly, GBR 18 Jun The Broken Arrow Skyrace Trail trail 46km Lake Tahoe, NV, USA 19 Jun Antwerp Backyard Ultra Timed trail 50km Schelle, BEL 19 Jun Bighorn Mountain Wild & Scenic 50km Trail Run Trail trail 51km Dayton, WY, USA 19 Jun Bighorn Mountain Wild & Scenic 50mi Trail Run Trail trail 84km Dayton, WY, USA 19 Jun Burney Mountain 100 Trail trail 161km / 100mi Cassel, CA, USA 19 Jun Kyststien Trail Ultra Trail trail 55km Larvik, NOR 19 Jun Orange Curtain 100km Ultra Race Trail trail 100km / 62mi Cerritos, CA, USA 19 Jun Orange Curtain 50km Ultra Race (early start) Trail trail 50km Cerritos, CA, USA 19 Jun Orange Curtain 6 Hour Ultra Race Timed trail 50km Cerritos, CA, USA 19 Jun Trail Shambhala Trail trail 50km Shangri-la City, CHN 20 Jun 1º Alpes Suinos Backyard Timed trail 50km Concordia, SC, BRA 20 Jun 6 at the Springs Timed trail 50km Poland, ME, USA 20 Jun Alpine Solstice Trail trail 55km Bend, OR, USA 20 Jun Austria Backyard Ultra - Frankenmarkt Timed trail 50km Frankenmarkt, AUT 20 Jun Baku Ultra Endurance 6–12–24H Timed trail 50km BAKU, AZE 20 Jun Bears Ears 50 km Ultra Race Trail trail 50km Monticello, UT, USA 20 Jun Bears Ears 50mi Ultra Race Trail trail 80km Monticello, UT, USA 20 Jun Beyond London Trail trail 55km Woolwich, GBR 20 Jun Black Mountain 50K Trail trail 50km San Diego, CA, USA 20 Jun Catamount Ultra Marathon Trail trail 50km Stowe, VT, USA 20 Jun Catoctin 50k Trail Run Trail trail 50km Frederick, MD, USA 20 Jun Dark 2 Dawn 9 Hour Trail Run Timed trail 50km Foristell, MO, USA 20 Jun Flagstaff Extreme Big Pine 54K Trail Run Trail trail 52km Flagstaff, AZ, USA 20 Jun Fuffy Twister - From Dusk Till Dawn Trail trail 50km Langenhagen, DEU 20 Jun Golden State 50K Trail trail 50km Salinas, CA, USA 20 Jun Headwaters Trail Run 50K Trail trail 52km Mount Shasta, CA, USA 20 Jun Highlands Sky 40M Trail Run Trail trail 64km Davis, WV, USA 20 Jun Horsens BackYard Ultra Timed trail 50km Horsens, DNK 20 Jun Hydra 75 Mile Ultra Trail trail 121km / 75mi Dorking, GBR 20 Jun Jurassic Coast 70km Ultra Trail trail 70km Poole, GBR 20 Jun KRS Last Man Standing Timed trail 50km Kristiansand, NOR 20 Jun Les 50 km de lArdèche Trail trail 50km Saint Peray, FRA 20 Jun Les Drayes du Vercors Trail trail 55km La Chapelle-en-Vercors, FRA 20 Jun Lommedalen Backyard Timed trail 50km Bærum, NOR 20 Jun Lowells Loop Timed trail 50km Pleasant Hill, OR, USA 20 Jun Many On The Genny 45 Mile Trail Ultra Trail trail 72km Castile, NY, USA 20 Jun Medunarodni 24 casovni Timed trail 50km Palić, SRB 20 Jun Medunarodni 6 casovni Timed trail 50km Palić, SRB 20 Jun Merrell Daocheng Yading SkyRace Trail trail 50km Autonomous Prefecture, CHN 20 Jun Messerpokallauf / Steinbacher Trailcross am Inselsberg Trail trail 50km Bad Liebenstein, DEU 20 Jun Minotaur 50 Mile Ultra Trail trail 80km Dorking, GBR 20 Jun New River Gorge Trail Festival Trail trail 50km West Virginia, USA 20 Jun Niagara Ultra 50 Mile Trail trail 80km Niagara-on-the-Lake, ON, CAN 20 Jun Niagara Ultra 50 km Trail trail 50km Niagara-on-the-Lake, ON, CAN 20 Jun Night Train 50k Trail trail 50km Farmville, VA, USA 20 Jun Nordmarka Skogsmarathon Trail trail 63km Oslo, NOR 20 Jun Old Gabe 50K Trail trail 50km Bozeman, MT, USA 20 Jun Orange Curtain 12 Hour Ultra Race Timed trail 50km Cerritos, CA, USA 20 Jun Orange Curtain 50km Ultra Race Trail trail 50km Cerritos, CA, USA 20 Jun Pierewaai Summer Beach Trail Trail trail 60km IJmuiden, NLD 20 Jun Race to the King 80k Trail trail 80km Goodwood, GBR 20 Jun Race to the King - Castle 50k Trail trail 52km Goodwood, GBR 20 Jun Race to the King - Coastal 50k Trail trail 49km Goodwood, GBR 20 Jun Ring the Springs 100 Km Trail trail 100km / 62mi Colorado Springs, CO, USA 20 Jun Ring the Springs 50 Km Trail trail 50km Colorado Springs, CO, USA 20 Jun River of No Return Endurance Run 53K Trail trail 55km Challis, ID, USA 20 Jun Saltire 12 Timed trail 50km Strachan, GBR 20 Jun Saltire 6 Timed trail 50km Strachan, GBR 20 Jun San Juan Solstice 50 Mile Run Trail trail 80km Lake City, CO, USA 20 Jun Schluchthof-Backyard Timed trail 50km Kleinostheim, DEU 20 Jun Schuetzen NEIN! Hour Endurance Run Timed trail 50km Davenport, IA, USA 20 Jun Slay The Dragon 50 km Trail Running Race Trail trail 50km Silver Star, BC, CAN 20 Jun Sunburn Solstice 15 Hour Trail Run Timed trail 50km Mount Hope, ON, CAN 20 Jun TRS Morrinhos do sul - Cânion Ultra Trail Trail trail 47km Morrinhos do Sul, RS, BRA 20 Jun Tenderfoot Boogie 50 km Ultra Trail Race Trail trail 50km Squamish, BC, CAN 20 Jun Three Shires Way Ultra Trail trail 80km Milton Keynes, GBR 20 Jun Trail Rail Run 50 K Trail trail 50km St. Regis, MT, USA 20 Jun Trail Rail Run 50 Mile Trail trail 80km St. Regis, MT, USA 20 Jun Tuscazoar Raw Trail trail 100km / 62mi Dover, OH, USA 20 Jun Two Hearted Trail Run Trail trail 50km Paradise, MI, USA 20 Jun Two Roses Ultra 100k Trail trail 100km / 62mi Hebden Bridge, GBR 20 Jun Two Roses Ultra 50k Red Rose Trail trail 50km Hebden Bridge, GBR 20 Jun Two Roses Ultra 50k White Rose Trail trail 50km Hebden Bridge, GBR 20 Jun Ultra Perth Trail trail 50km Perth, WA, AUS 20 Jun Vechtdal Trail Trail trail 60km Ommen, NLD 20 Jun White Pine Solstice Runs Trail trail 55km Tooele, UT, USA 20 Jun Whitewater Trail Challenge Trail trail 50km Whitewater, WI, USA 20 Jun Wicked Worm 12 Hour Timed trail 50km Grand Rapids, MI, USA 20 Jun Wicked Worm 6 Hour Timed trail 50km Grand Rapids, MI, USA 20 Jun Wild Woman Trail Marathon Trail trail 50km Trout Lake, WA, USA 21 Jun Dark 2 Dawn 6 Hour Trail Run Timed trail 50km Foristell, MO, USA 21 Jun Denali 135 Great Alaska Endurance 100 km Race Trail trail 100km / 62mi Paxson, AK, USA 21 Jun Denali 135 Great Alaska Endurance 50 km Race Trail trail 50km Paxson, AK, USA 21 Jun Grand Trail du Haut-Forez Trail trail 70km La Chapelle-en-Lafaye, FRA 21 Jun Jurassic Coast 50km Ultra Trail trail 50km Lyme Regis, GBR 21 Jun Limburger 12-Stunden-Lionslauf Timed trail 50km Elz, DEU 21 Jun Maratrail du Haut-Forez Trail trail 45km La Chapelle-en-Lafaye, FRA 21 Jun Medunarodni 100km ultramaraton Trail trail 100km / 62mi Palić, SRB 21 Jun Medunarodni 12 casovni Timed trail 50km Palić, SRB 21 Jun Medunarodni 50km ultramaraton Trail trail 50km Palić, SRB 21 Jun Schloss Tatenhausen Ultramarathon Trail trail 45.6km Halle/Westfalen, DEU 21 Jun Trail del Centenario Trail trail 50km Foppolo (BG), ITA 22 Jun Six Days in the Dome - The Redux 12h Timed trail 50km Milwaukee, WI, USA 23 Jun Bamford Frontyard Trail trail 60km Asker, NOR 23 Jun Brandstorp Backyard Timed trail 50km Skjeberg, NOR 26 Jun 16 Maratonmarschen (previously Stockholm Fotrally) Timed trail 50km Mariefred, SWE 26 Jun 19^ Lavaredo Ultra Trail by UTMB - 50K Trail trail 50km Cortina d'Ampezzo, ITA 26 Jun 2ème Backyard Toulouse Timed trail 50km Castanet-Tolosan, FRA 26 Jun 5^ Cervino Matterhorn Ultra Race CMUR70 Trail trail 70km Breuil-Cervinia, ITA 26 Jun Gdynia Ultra Way Trail trail 50km Wejcherowo, POL 26 Jun Kent Backyard Ultra – Bedgebury Timed trail 50km Goudhurst, GBR 26 Jun Silverleden Ultra 100M Trail trail 161km / 100mi Hällefors, SWE 26 Jun The Yeti 100 Mile Endurance Run-Washington Trail trail 161km / 100mi North Bend, WA, USA 26 Jun The Yeti 100 km Endurance Run-Washington Trail trail 100km / 62mi North Bend, WA, USA 26 Jun The Yeti 200 km Endurance Run-Washington Trail trail 200km / 124mi North Bend, WA, USA 26 Jun Wild Dog Backyard Ultra Timed trail 50km Lardner, VIC, AUS 27 Jun 25 Zes uur van de Haarlemmermeer Timed trail 50km Hoofddorp, NLD 27 Jun 5 Backyard Ultra Nämforsen Timed trail 50km Sollefteå, SWE 27 Jun 6 H2 Ultra Trailrun - 50 km Trail trail 50km Vargön, SWE 27 Jun 6 H2 Ultra Trailrun - 80 km Trail trail 80km Vargön, SWE 27 Jun BUT100 (Brabants UltraTrail) - 100 km Trail trail 100km / 62mi Leende, NLD 27 Jun BUT100 (Brabants UltraTrail) - 50 km Noord Trail trail 50km Leende, NLD 27 Jun BUT100 (Brabants UltraTrail) - 75 km Trail trail 75km Leende, NLD 27 Jun Backyard Kirkenes Timed trail 50km Kirkenes, NOR 27 Jun Backyard Ultra The Last Lap - Varen Timed trail 50km Varen, CHE 27 Jun Bergischer 6 Stundenlauf Timed trail 50km Remscheid, DEU 27 Jun Brooksvale 12-Hour Timed trail 50km Hamden, CT, USA 27 Jun Burginsellauf Delmenhorst, 6h Timed trail 50km Delmenhorst, DEU 27 Jun Byron Rainforest Run Trail trail 50km Whian Whian, NSW, AUS 27 Jun Cacapon 12 Hour Challenge Timed trail 50km Berkeley Springs, WV, USA 27 Jun Canmore Revolver Timed trail 50km Canmore, AB, CAN 27 Jun Cervino Matterhorn Ultra Race CMUR50 Trail trail 47km Breuil-Cervinia, ITA 27 Jun Dawg Gone Long Run 50 Miler Trail trail 80km Waynesville, OH, USA 27 Jun Dawg Gone Long Run 50k Trail trail 50km Waynesville, OH, USA 27 Jun Dawn to Dusk Endurance Run 15:30 Hour Trail trail 50km Valders, WI, USA 27 Jun Dawn to Dusk Endurance Run 6 Hour Timed trail 50km Valders, WI, USA 27 Jun Dawn to Dusk Endurance Run 8 Hour Timed trail 50km Valders, WI, USA 27 Jun Dawn to Dusk Endurance Run 8.5 Hour Trail trail 50km Valders, WI, USA 27 Jun EcoTrail Bergen 65km Trail trail 65km Bergen, NOR 27 Jun EcoTrail Bergen 91km Trail trail 91km Bergen, NOR 27 Jun Empower Backyard Ultra Timed trail 50km Lebanon, OH, USA 27 Jun Engiadina Scuol Trail - Alvetern Trail Trail trail 49km Scuol, CHE 27 Jun Grassroots Backyard Ultra 15 Timed trail 50km Okotoks, AB, CAN 27 Jun Hell Hath No Hurry 50 Km Trail trail 50km Pittsburgh, PA, USA 27 Jun Hell Hath No Hurry 50 Miler Trail trail 80km Pittsburgh, PA, USA 27 Jun High Noon 24 Hour Trail Race Timed trail 50km Thunder Bay, ON, CAN 27 Jun Hollis Hills Farm Revival Trail trail 50km Ellenboro, NC, USA 27 Jun Losheimer Trailfest T100 Trail trail 100km / 62mi Losheim am See, DEU 27 Jun Losheimer Trailfest T50 Trail trail 51km Losheim am See, DEU 27 Jun Maverick X Series North Downs Trail trail 52km Cranleigh, GBR 27 Jun Małopolskie Biegi Górskie Trail trail 63km Krynica Zdrój, POL 27 Jun McCall Trailrunning Classic 50 Km Trail trail 50km McCall, ID, USA 27 Jun Neuenbürger Schloss-Park-Run Timed trail 50km Neuenbürg, DEU 27 Jun No Shame Shindig Trail trail 80km Pierce, NE, USA 27 Jun Preikestolen Backyard Ultra Timed trail 50km Jørpeland, NOR 27 Jun Red Dirt Backyard Ultra Timed trail 50km Nickol, WA, AUS 27 Jun Romeriksåsen på langs Trail trail 50km Gjerdrum, NOR 27 Jun Roots Racing Guarulhos 66km Trail trail 66km Guarulhos, SP, BRA 27 Jun Running With The Devil 50 km Race Trail trail 50km Las Vegas, NV, USA 27 Jun Sachsentrail im Erzgebirge Trail trail 75km Breitenbrunn, DEU 27 Jun Sauwald Trail Trail trail 47km Schardenberg, AUT 27 Jun Silverleden Ultra - 64K Trail trail 64km Hällefors, SWE 27 Jun Supermaraton Gór Stołowych Trail trail 54km Karlow, POL 27 Jun Tackle the Toad 50km Race Trail trail 50km Nelson, BC, CAN 27 Jun Tiger Peak Challenge Trail trail 50km Issaquah, WA, USA 27 Jun To Bone and Back 40-Mile Ultra Marathon Trail trail 64km Idaho Falls, ID, USA 27 Jun Toxic Trail 37 Mile Race Trail trail 60km Port Mayaca, FL, USA 27 Jun Ultramarsch Oberstdorf 60km Trail trail 60km Oberstdorf, DEU 27 Jun Veitscher Skytrail Trail trail 54km St. Barbara im Mürztal, AUT 27 Jun Vulture Vista Ultra Timed trail 50km Greencastle, IN, USA 27 Jun Wy’east Wonder 50 Km Trail Race Trail trail 50km Parkdale, OR, USA 27 Jun Wy’east Wonder 50 Mile Trail Race Trail trail 80km Parkdale, OR, USA 28 Jun 49a Pistoia-Abetone Ultramarathon Trail trail 50km Pistoia, ITA 28 Jun BUT100 (Brabants UltraTrail) - 50 km Zuid Trail trail 50km Leende, NLD 28 Jun Buckeye Trail 50k Trail trail 50km Brecksville, OH, USA 28 Jun Coventry Woods Trail Running Festival Timed trail 50km Pottstown, PA, USA 28 Jun Hellz Bellz Ultra Trail trail 80km Yacolt WA, USA 28 Jun Huanglong Ultra Trail - XBD 50 Trail trail 50km Songpan County, CHN 28 Jun Izery Ultra-Trail Trail trail 50km Swieradow-Zdroj, POL 28 Jun Northumbrian 50K Ultra Trail trail 48km Kielder, GBR 28 Jun TrailFest Salcey Forest 50 km Trail trail 50km Salcey Forest, GBR 28 Jun Viadukt Ultramarathon Trail trail 45.2km Altenbeken, DEU 28 Jun Westerwolde Ultra Trail trail 100km / 62mi Wedde, NLD

July

2 Jul Val dAran by UTMB - Peades dAigua Trail trail 55km Salardu, ESP 3 Jul Another One Bites the Dust Timed trail 50km Bierbeek, BEL 3 Jul Brave Backyard Ultra Timed trail 50km Divinopolis, MG, BRA 4 Jul 11^ Sei ore de Conti Trail trail 50km Serra De Conti (AN), ITA 4 Jul 2 Ryavallen Ultrafestival - 100km Trail trail 100km / 62mi Borås, SWE 4 Jul 2 Ryavallen Ultrafestival - 12h Timed trail 50km Borås, SWE 4 Jul 2 Ryavallen Ultrafestival - 24h Timed trail 50km Borås, SWE 4 Jul 2 Ryavallen Ultrafestival - 6h Timed trail 50km Borås, SWE 4 Jul 2 Ryavallen Ultrafestival - backyard ultra Timed trail 50km Borås, SWE 4 Jul 2 Säljan Backyard Ultra Timed trail 50km Säljan, Sandviken, SWE 4 Jul 20ème Sri Chinmoy 50km Lauf Paris Trail trail 50km Paris, FRA 4 Jul 35ème Sri Chinmoy 100km Lauf Paris Trail trail 100km / 62mi Paris, FRA 4 Jul 4ème Grand Raid du Guillestrois et du Queyras - Trail des Lacs Trail trail 48km Ceillac, FRA 4 Jul Afton Trail Run 50K Trail trail 50km Afton, MN, USA 4 Jul Carpathia Bucegi Trails 57km Trail trail 57km Fundata, ROU 4 Jul Carpathia Piatra Craiului Trails 45km Trail trail 45km Fundata, ROU 4 Jul Carpathia UltraTrails 102km Trail trail 102km / 63mi Fundata, ROU 4 Jul ChalmaTrail - Chalma80 Trail trail 80km Chalmazel-Jeansagniere, FRA 4 Jul ChalmaTrail - Chalmarathon Trail trail 45km Chalmazel-Jeansagniere, FRA 4 Jul Finger Lakes Fifties 50 Mile Run Trail trail 80km Hector, NY, USA 4 Jul Finger Lakes Fifties 50 km Run Trail trail 50km Hector, NY, USA 4 Jul Grand Targhee Wildflower Run Trail trail 50km Alta, WY, USA 4 Jul Hornindal Rundt Trail trail 75km Hornindal, NOR 4 Jul Kolmården Ultra Trail 45K Trail trail 45km Kvarsebo Kolmården, SWE 4 Jul Kolmården Ultra Trail 60K Trail trail 60km Kvarsebo Kolmården, SWE 4 Jul Limberlost 56 km Challenge Trail trail 56km Huntsville, ON, CAN 4 Jul Mac Mac Ultra 46 Km Trail trail 46km Sabie, ZAF 4 Jul Quebec Mega Trail 50 Km Trail trail 50km Saint-Tite-des-Caps, QC, CAN 4 Jul Rancho Hills Trail Run - Summer Trail trail 50km Morgan Hill, CA, USA 4 Jul Run for Fun 14.0 - 12h Timed trail 50km Saterland, DEU 4 Jul Ryavallen Ultrafestival - 12h - 100km split Trail trail 100km / 62mi Borås, SWE 4 Jul Ryavallen Ultrafestival - 24h - 100mi split Trail trail 161km / 100mi Borås, SWE 4 Jul Southern Sydney Track Ultra - 24h Trail trail 50km Campbelltown, NSW, AUS 4 Jul The Alpenglow 100 Trail trail 60km Valemount, BC, CAN 4 Jul The Pigum - Porth i Gymru Ultra Marathon Trail trail 48km Abergavenny, GBR 4 Jul thüringenULTRA 100 km Trail trail 100km / 62mi Fröttstädt, DEU 4 Jul Ålgård-Sirdal Trail trail 100km / 62mi Ålgård, NOR 5 Jul 2 Ryavallen Ultrafestival - 6h söndag Timed trail 50km Borås, SWE 5 Jul Reckless Raven 50 Mile Ultra Trail trail 80km Whitehorse, YT, CAN 5 Jul Red Wing 60km Trail Challenge Trail trail 60km Lagrangeville, NY, USA 5 Jul Terras Altas Trail Run Trail trail 55km Itamonte, MG, BRA 9 Jul The MTC Severn Plod Ultra Trail trail 77km Caersws, GBR 10 Jul 3 x Śnieżka = 1 x Mont Blanc® Trail trail 58km Karpacz, POL 10 Jul Austria Backyard Ultra - Wagendorf/Oststmk Timed trail 50km Wagendorf, AUT 10 Jul Kristinehamn Backyard 12h Timed trail 50km Kristinehamn, SWE 10 Jul Merrills Mile 12 Hour Run Timed trail 50km Dahlonega, GA, USA 10 Jul Merrills Mile 6 Hour Run Timed trail 50km Dahlonega, GA, USA 10 Jul Silverheels Trail Run - 50mi Trail trail 80km Como, CO, USA 10 Jul The MTC Severn Path Ultra Trail trail 95km Shrewsbury, GBR 11 Jul 3 Klåveröd Backyard Timed trail 50km Kågeröd, SWE 11 Jul 7 6 ore di Roma Timed trail 50km Roma, ITA 11 Jul 8-Hour Dream Endurance Race Timed trail 50km Indianapolis, IN, USA 11 Jul Bastille Day Trail Run Trail trail 50km Franschhoek, ZAF 11 Jul Beaverhead 100K Endurance Run Trail trail 100km / 62mi Salmon, ID, USA 11 Jul Beaverhead 55K Endurance Run Trail trail 55km Salmon, ID, USA 11 Jul Black Mountains 32mi Trail trail 51km Llanbedr, GBR 11 Jul Black Mountains 50mi Trail trail 80km Llanbedr, GBR 11 Jul Cape Town Festival of Running 50 Km Trail trail 50km Cape Town, ZAF 11 Jul Columbia 50 Ultra Trail Chongli Challenge Race Trail trail 50km Chongli, CHN 11 Jul Cry Me A River 50 Km Trail Run Trail trail 50km Chillicothe, IL, USA 11 Jul Dances with Dirt - Devils Lake 50K Ultra Trail trail 50km Baraboo, WI, USA 11 Jul Dances with Dirt - Devils Lake 50M Ultra Trail trail 80km Baraboo, WI, USA 11 Jul Devils Backbone 50 Miler Trail trail 80km Bozeman, MT, USA 11 Jul Devils Gulch 100 Mile Race Trail trail 161km / 100mi Wenatchee, WA, USA 11 Jul Devils Gulch 50 Mile Race Trail trail 80km Wenatchee, WA, USA 11 Jul Diablito Ultra Trail trail 80km Springfield, LA, USA 11 Jul Dirty Burg 50K Trail Run Trail trail 50km Belmont, MI, USA 11 Jul Dirty Dozen 12h Endurance Run Timed trail 50km Pinole, CA, USA 11 Jul Dirty Dozen 6h Endurance Run Timed trail 50km Pinole, CA, USA 11 Jul Hardangerjøkulen Ultra Trail trail 95km Vøringsfossen, NOR 11 Jul Insomniac Night Trail Run Series - Stunner 50km Trail trail 50km Mesa, AZ, USA 11 Jul Ironstone 100 km Race Trail trail 100km / 62mi Hollidaysburg, PA, USA 11 Jul Kill Bills Oyster Dome Challenge Trail trail 50km Alger, WA, USA 11 Jul Knee Knackering North Shore Trail Run Trail trail 48km West Vancouver, BC, CAN 11 Jul Krayzie Midwinter Backyard Ultra Timed trail 50km Christchurch, NZL 11 Jul Laugavegurinn Trail trail 55km Landmannalaugar, ISL 11 Jul Leadville Silver Rush 50 Mile Run Trail trail 80km Leadville, CO, USA 11 Jul Miola Madness - Hot Summer Nights 12h Timed trail 50km Paola, KS, USA 11 Jul Miola Madness - Hot Summer Nights 6h Timed trail 50km Paola, KS, USA 11 Jul Miola Madness - Hot Summer Nights 9h Timed trail 50km Paola, KS, USA 11 Jul Mt. Hood 50 Mile Trail Run Trail trail 80km Mt. Hood, OR, USA 11 Jul Nordansjö Nattultra Trail trail 60km Norberg, SWE 11 Jul Notchview Ultra 12 Hour Ultra Timed trail 50km Adams, MA, USA 11 Jul O-SEE Backyard Ultra Timed trail 50km Zittau, DEU 11 Jul Obertauern Trailrun Summit (OTS): Marathon Trail 53K Trail trail 53km Obertauern, AUT 11 Jul Obertauern Trailrun Summit (OTS): Trail Ultra 76K Trail trail 76km Obertauern, AUT 11 Jul RP-Ultralauf / 3-Türme-Lauf XL Trail trail 60km Bad Münder, DEU 11 Jul Rhodes 52 km Trail Run Trail trail 52km Rhodes, ZAF 11 Jul San Lorenzo River Trail Run Trail trail 50km Santa Cruz, CA, USA 11 Jul Silverheels Trail Run - 60km Trail trail 60km Como, CO, USA 11 Jul Sinister 7 Ultra - 50 km Trail trail 50km Blairmore, AB, CAN 11 Jul Siskiyou Out Back 100 Km Trail Run Trail trail 100km / 62mi Mount Ashland, OR, USA 11 Jul Siskiyou Out Back 50 km Trail Run Trail trail 50km Mount Ashland, OR, USA 11 Jul Spaulding Woods 50K Trail trail 50km Northfield, NH, USA 11 Jul The MTC Severn Way Ultra Trail trail 92km Worcester, GBR 11 Jul Ultra Adelaide 100mi, 100km, 50km Trail trail 161km / 100mi Adelaide, SA, AUS 11 Jul Ultra Mazury - U100 Trail trail 100km / 62mi Stare Jablonki, POL 11 Jul Ultra Mazury - U70 Trail trail 70km Stare Jabłonki, POL 11 Jul Waugoshance Trail 50K Trail trail 50km Mackinaw City, MI, USA 11 Jul Windsor Castle 5 Hour Run Timed trail 50km Smithfield, VA, USA 12 Jul 9ta Vuelta al Lago Epecuen Trail trail 60km Carhue, ARG 12 Jul Hardin-Meade Endurance Run Trail trail 50km Elizabethtown, KY, USA 12 Jul Madison Ultra 50km Downhill Trail trail 50km Ennis, MT, USA 12 Jul Mt. Hood 50 Km Trail Run Trail trail 50km Mt. Hood, OR, USA 12 Jul Notchview Ultra 6 Hour Ultra Timed trail 50km Adams, MA, USA 12 Jul Schnadegang Rund um Schalksmühle Trail trail 47km Schalksmühle, DEU 12 Jul Teton Mountain Runs Cody Peak 50K Trail trail 50km Teton Village, WY, USA 12 Jul The MTC Bristol Severn Trail trail 48km Frampton Court Estate, GBR 12 Jul Trail dei Nebrodi Trail trail 55km San Teodoro (ME), ITA 16 Jul XII. Dolnośląski Festiwal Biegów Górskich Trail trail 110km / 68mi Lądek Zdrój, POL 16 Jul XII. Dolnośląski Festiwal Biegów Górskich - Bieg 7 Szczytów 240 km Trail trail 240km / 149mi Lądek Zdrój, POL 17 Jul 5^ 100 miglia del Monviso Trail trail 160km / 99mi Saluzzo (CN), ITA 17 Jul Ut4M 50 Taillefer Trail trail 46.5km Saint-Georges-de-Commiers, FRA 17 Jul VII Backyard Ultra Polska - Silver Ticket Timed trail 50km Jablonna, POL 18 Jul 12 Hours of Lawrence Woods Timed trail 50km Medford, MA, USA 18 Jul Beyond Manchester Trail trail 55km Manchester, GBR 18 Jul Big Butts 100 km Trail trail 100km / 62mi Clinton-Jackson, MS, USA 18 Jul Big Butts 50 km Trail trail 50km Clinton-Jackson, MS, USA 18 Jul Bob Marshall Trail 50K Trail trail 50km Seeley Lake, MT, USA 18 Jul Boyne Valley 50 Trail trail 50km Boyne Valley, QLD, AUS 18 Jul Brandberg Backyard Ultra Timed trail 50km Uis, Erongo, NAM 18 Jul Carolina Reaper Challenge Trail trail 50km Greenville, SC, USA 18 Jul Catherines 50k Run Trail trail 50km Luray, VA, USA 18 Jul Eiger Ultra Trail Trail trail 101km / 63mi Grindelwald, Switzerland ↑6,700m 18 Jul Fachberg 100 Trail trail 100km / 62mi Northeim, DEU 18 Jul Full Moon Run - Midnight 50K Trail trail 50km Perryville, AR, USA 18 Jul Garmin Ultra Race Tolkmicko Trail trail 51km Kadyny, POL 18 Jul Get Your Butt Kicked 6 Hour Race Timed trail 50km Eureka, MO, USA 18 Jul Harding Hustle 50K Trail trail 50km Modjeska Canyon, CA, USA 18 Jul Hell Mary - 12h Timed trail 50km Pegram, TN, USA 18 Jul Hell Mary - 12h Rucking Timed trail 50km Pegram, TN, USA 18 Jul Hell Mary - 6h Timed trail 50km Pegram, TN, USA 18 Jul Lake Macbride Trail Races Trail trail 50km Solon, IA, USA 18 Jul Lillesand Backyard Ultra Timed trail 50km Lillesand, NOR 18 Jul Memorial Ultra Scalve Trail Trail trail 47km Dezzo di Scalve, ITA 18 Jul NCTRaces - Palmers Trail trail 50km Solon Springs, WI, USA 18 Jul Power of Four Trail Run Trail trail 50km Aspen, CO, USA 18 Jul Rise & Run Trail trail 50km Wellsboro, PA, USA 18 Jul Silverton Alpine 50K Trail trail 50km Silverton, CO, USA 18 Jul Sombrero Sizzler 12h Timed trail 50km Jacksonville, FL, USA 18 Jul Sombrero Sizzler 6h Timed trail 50km Jacksonville, FL, USA 18 Jul Sombrero Sizzler 9h Timed trail 50km Jacksonville, FL, USA 18 Jul The Aliza Lapierre Fan Club 50k Trail trail 50km Richmond, VT, USA 18 Jul The Cherokee 70k Trail trail 70km Tellico Plains, TN, USA 18 Jul The Gax 100 miles Trail trail 161km / 100mi Ystad, SWE 18 Jul The Guzzler Ultra 100km Trail trail 100km / 62mi Brisbane, QLD, AUS 18 Jul The Guzzler Ultra 50km Trail trail 50km Brisbane, QLD, AUS 18 Jul Ultramaratona dos Perdidos 50 Km Trail trail 50km Tijucas do Sul, PR, BRA 18 Jul Ut4M 50 Belledonne Trail trail 48km Riouperoux, FRA 18 Jul Vermont 100 km Endurance Race Trail trail 100km / 62mi West Windsor, VT, USA 18 Jul Wakely Dam Ultra Trail trail 55km Piseco Lake, NY, USA 18 Jul Wellington Urban Ultra 2K (WUU-2K) Trail trail 64km Wellington, NZL 18 Jul Wellington Urban Ultra 2K (WUU-2K) 45km Trail trail 45km Wellington, NZL 18 Jul XII. Dolnośląski Festiwal Biegów Górskich - Ultra 70 Km Trail trail 70km Ladek Zdrój, POL 19 Jul 2 Kalmar Frontyard Timed trail 50km Värsnäs Kalmar, SWE 19 Jul Big Chief 50K Trail Run Trail trail 50km Truckee, CA, USA 19 Jul Clare Valley Trail Run Trail trail 50km Clare, SA, AUS 19 Jul Endless Summer 6 Hour Run Timed trail 50km Annapolis, MD, USA 19 Jul Galiyat Mountain Trail Trail trail 59km Abbottabad, PAK 19 Jul Goldfields Pipeline Ultra Trail trail 50km Kalgoorlie, WA, AUS 19 Jul Truth Or Consequences (50km Ultra) Trail trail 50km Serpentine Falls NP, WA, AUS 24 Jul Never Summer 60k Trail trail 60km Gould, CO, USA 24 Jul Speedgoat 50k Trail trail 50km Sandy, UT, USA 24 Jul Standhope Ultra Challenge Trail trail 60km Ketchum, ID, USA 25 Jul 3 Hamra Trail - Ultra Trail trail 48km Fjällnäs, SWE 25 Jul 6-h-Lauf am Förderturm Bönen Timed trail 50km Bönen, DEU 25 Jul Blefjells Beste 57km Trail trail 57km Bestebu, NOR 25 Jul Bleik Backyard Ultra Timed trail 50km Bleik, NOR 25 Jul Buckin Hell 50 Km Trail trail 50km Deep Cove, North Vancouver, BC, CAN 25 Jul Bucovina Ultra Rocks by UTMB - Ladys Rocks Trail trail 48km Campulung Moldovenesc, ROU 25 Jul Burning River 50 Mile Endurance Run Trail trail 80km Willoughby Hills, OH, USA 25 Jul Crazy Runners Frankenwald Trail Trail trail 53km Geroldsgrün, DEU 25 Jul Elder Creek Night Runs in the Desert 50 km Run Trail trail 50km Anza, CA, USA 25 Jul Elkhorn Crest 50 Trail trail 80km Sumpter, OR, USA 25 Jul GEO-Pfad Ultramarathon Trail trail 50km Langenhagen, DEU 25 Jul Grand Island 50 km Race Trail trail 50km Munising, MI, USA 25 Jul Grand Mesa 50 Mile Trail Race Trail trail 80km Grand Mesa, CO, USA 25 Jul Grand Mesa 55 km Trail Race Trail trail 55km Grand Mesa, CO, USA 25 Jul Great Shasta Rail Trail Trail trail 50km McCloud, CA, USA 25 Jul Kaldoaivi Ultra Trail 57km Trail trail 57km Mieraslompolo, FIN 25 Jul Last at the Lake 50k Run Trail trail 50km West Point Lake, GA, USA 25 Jul Last at the Lake Last Man Standing Run Timed trail 50km West Point Lake, GA, USA 25 Jul Lost Sierra Endurance Run 100Km Trail trail 100km / 62mi Graeagle, CA, USA 25 Jul Lost Sierra Endurance Run 50Km Trail trail 50km Graeagle, CA, USA 25 Jul Lost Turkey Trail 50 km Ultra Trail trail 50km Blue Knob, PA, USA 25 Jul Maah Daah Hey 50 Mile Trail Run Trail trail 87km Medora, ND, USA 25 Jul Mighty Mosquito 50 Mile Ultra Race Trail trail 80km Honeoye Falls, NY, USA 25 Jul Mighty Mosquito 50km Ultra Race Trail trail 50km Honeoye Falls, NY, USA 25 Jul Minnesota Voyageur Trail 50 Mile Ultra Trail trail 80km Carlton, MN, USA 25 Jul Northland 100 - 100mi Trail trail 165km / 103mi Whangarei, NZL 25 Jul Northland 100 - 105km Trail trail 105km / 65mi Whangarei, NZL 25 Jul Northland 100 - 57km Trail trail 57km Whangarei, NZL 25 Jul Northland 100 - 82km Trail trail 82km Whangarei, NZL 25 Jul Ocean State Ultra Trail trail 50km West Greenwich, RI, USA 25 Jul Oregon Cascades 50 Mile Race Trail trail 80km Sisters, OR, USA 25 Jul Pikes Peak Ultra 50 Km Trail trail 50km Colorado Springs, CO, USA 25 Jul Pikes Peak Ultra 50 Mile Trail trail 80km Colorado Springs, CO, USA 25 Jul Posthlaupid Trail trail 50km Balkastadir, ISL 25 Jul Rattlerock Ultra Trail trail 50km Morgantown, WV, USA 25 Jul Resurrection Pass 50 Mile Ultra Trail Race Trail trail 80km Cooper Landing, AK, USA 25 Jul Revsudden Backyard Ultra Timed trail 50km Rockneby, SWE 25 Jul Sweat Hot Oklahoma Summer Trials 12h Timed trail 50km Nowata, OK, USA 25 Jul Sweat Hot Oklahoma Summer Trials 6h Timed trail 50km Nowata, OK, USA 25 Jul Sydney Ultra Marathon SUM50 Trail trail 50km St. Ives, NSW, AUS 25 Jul Tally in the Valley 12 Hour Trail Race Timed trail 50km Dundas, ON, CAN 25 Jul Tally in the Valley 6 Hour Trail Race Timed trail 50km Dundas, ON, CAN 25 Jul The Divide 50 Trail trail 50km Butte, MT, USA 25 Jul The Magnificent Bastards Challenge Timed trail 50km Corinth, VT, USA 25 Jul The Magnificent Bastards Challenge - Rucker Timed trail 50km Corinth, VT, USA 25 Jul The Squatchung Surprise 12 Hour Race Timed trail 50km Mountainside, NJ, USA 25 Jul The Squatchung Surprise 6 Hour Race Timed trail 50km Mountainside, NJ, USA 25 Jul The Sweaty Backyard Cox Ultra Timed trail 50km Concord, NC, USA 25 Jul The Trident Trail trail 164km / 102mi Jupiter, FL, USA 25 Jul VUT100 (Veluwse Ultra Trail) - 100km Trail trail 100km / 62mi Elspeet, NLD 25 Jul VUT100 (Veluwse Ultra Trail) - 50km noord Trail trail 50km Elspeet, NLD 25 Jul VUT100 (Veluwse Ultra Trail) - 75km Trail trail 75km Elspeet, NLD 25 Jul Whiterock 50 Mile Ultra Race Trail trail 80km Coon Rapids, IA, USA 25 Jul Whiterock 50 km Ultra Race Trail trail 50km Coon Rapids, IA, USA 26 Jul Bjäre Trail Run 51K Trail trail 51km Båstad, SWE 26 Jul Hot to Trot 4 Hours Run Timed trail 50km Lithia Springs, GA, USA 26 Jul Hot to Trot 8 Hours Run Timed trail 50km Lithia Springs, GA, USA 27 Jul RunFellows Sommernacht Trail SNT70 Trail trail 72km Wörth an der Donau, DEU 27 Jul The Summit 200 Trail trail 322km / 200mi Frisco, CO, USA 30 Jul 1er Grand Raid Kiprun 3 Vallées Moûtiers - Ultra des 3 Vallées Trail trail 170km / 106mi Moûtiers, FRA 30 Jul Fjällmaraton 100k Trail trail 100km / 62mi Fångåmon, SWE ↑3,661m 31 Jul 1er Grand Raid Kiprun 3 Vallées Moûtiers - LOdyssée de Caron Trail trail 110km / 68mi cime Caron (Val Thorens), FRA 31 Jul Bienwald Backyard Ultra Timed trail 50km Kandel, DEU 31 Jul Full Moon Race Trail trail 80km Brantevik, SWE ↑699m 31 Jul Pitz Alpine Glacier Trail P105 Trail trail 103km / 64mi Mandarfen, AUT 31 Jul Pitz Alpine Glacier Trail P60 Trail trail 63km Mandarfen, AUT 31 Jul Pitz Alpine Glacier Trail P90 Trail trail 87km Mandarfen, AUT

August

1 Aug 1er Grand Raid Kiprun 3 Vallées Moûtiers - Le Défi de la Masse Trail trail 70km Les Ménuires, FRA 1 Aug 1er Grand Raid Kiprun 3 Vallées Moûtiers - Marathon des 3 Vallées Trail trail 50km Saint-Martin-de-Belleville, FRA 1 Aug 3ª Backyard da Moda S.C.C. Timed trail 50km Santa Cruz dos Capibaribe, PE, BRA 1 Aug 8 Obbola Backyard Timed trail 50km Obbola, Umeå, SWE 1 Aug A Louisiana Summer Night Ultra Timed trail 50km Lafayette, LA, USA 1 Aug Aspen Backcountry Trail trail 50km Aspen, CO, USA 1 Aug Backyard Timed trail 50km Freudenstadt, DEU 1 Aug Badger Trail Races by Ten Junk Miles Racing Trail trail 80km Belleville, WI, USA 1 Aug Big Day out - The Crossing Trail trail 53km Belstone, GBR 1 Aug Blazin Summer Sufferfest 54 km Race Trail trail 54km Cedar Hill, TX, USA 1 Aug Blue Hill Mountain Trail Fest Trail trail 50km Blue Hill, ME, USA 1 Aug Bodøryggen Trail trail 49km Bodø, NOR 1 Aug Bruksleden Terrängmaraton Trail trail 42.6km Bastmora, SWE ↑983m 1 Aug Drews Angel Creek 50 Mile Race Trail trail 80km Fairbanks, AK, USA 1 Aug Drews Angel Creek 50 km Race Trail trail 50km Fairbanks, AK, USA 1 Aug El Vaquero Loco 50K Mountain Race Trail trail 50km Afton, WY, USA 1 Aug Esk Valley Ultra Trail trail 58km Castleton, GBR 1 Aug Extreme Ravine 12h Race Timed trail 50km Binghamton, NY, USA 1 Aug Fiesta Night Run Trail trail 50km San Antonio, USA 1 Aug Fiesta Night Run 50km Trail trail 50km San Antonio, TX, USA 1 Aug Fjällmaraton 45K Trail trail 45.4km Trillevallen, SWE ↑1,902m 1 Aug Gauja Trail by UTMB - 100K Trail trail 85km Sigulda, LAT 1 Aug HURL Elkhorn 50 Mile Endurance Run Trail trail 80km Montana City, MT, USA 1 Aug HURL Elkhorn 50 km Endurance Run Trail trail 50km Montana City, MT, USA 1 Aug Hamster Endurance Runs 12 Hour Run Timed trail 50km Bellingham, WA, USA 1 Aug Hamster Endurance Runs 6 Hour Run Timed trail 50km Bellingham, WA, USA 1 Aug Hatcher Pass 50 Mile Trail trail 80km Willow, AK, USA 1 Aug Jarmans Invitational Marathon Trail trail 48km Crozet, VA, USA 1 Aug Jotunheimen Trail Run Trail trail 70km Bygdin, NOR 1 Aug Kärleken-Sjukhuset-Kyrkogården Backyard Timed trail 50km Halmstad, SWE 1 Aug Loopy Looper 12-Hour Run Timed trail 50km Pennsauken Township, NJ, USA 1 Aug MissionCleanWater (MCW) Westfield 12 Hour Ultra Timed trail 50km Westfield, NJ, USA 1 Aug MissionCleanWater (MCW) Westfield 6 Hour Ultra Timed trail 50km Westfield, NJ, USA 1 Aug MissionCleanWater (MCW) Westfield 9 Hour Ultra Timed trail 50km Westfield, NJ, USA 1 Aug Moosalamoo Ultra Trail trail 58km Goshen, VT, USA 1 Aug Personliga Rekordens Backyard Timed trail 50km Växjö, SWE 1 Aug Philmont Trail Race Trail trail 80km Cimarron, NM, USA 1 Aug Pines To Vines Trail trail 55km Pinckney, MI, USA 1 Aug Reds Backyard Ultra Timed trail 50km Kembla Grange, NSW, AUS 1 Aug Riley Park Trail Races Timed trail 50km Coto de Caza, CA, USA 1 Aug River to Sea 12 Hour Race Timed trail 50km Marineland, FL, USA 1 Aug River to Sea 6 Hour Race Timed trail 50km Marineland, FL, USA 1 Aug Rodeo Valley 50 km Trail Run Trail trail 50km Rodeo Beach, Sausalito, CA, USA 1 Aug Royal Beast 12 Hour Run/Walk/Relay Timed trail 50km New Palestine, USA 1 Aug Rumble in the Jungle Trail trail 50km Ulong, NSW, AUS 1 Aug Rumble in the Jungle 100km Trail trail 100km / 62mi Ulong, NSW, AUS 1 Aug Schwarzwaldultra Backyard (Mini-SWUB) Timed trail 50km Freudenstadt, DEU 1 Aug Sheep Mountain 50 Mile Endurance Run Trail trail 80km Fairplay, CO, USA 1 Aug Sheep Mountain 50 km Endurance Run Trail trail 50km Fairplay, CO, USA 1 Aug Steel City 12 Hour Endurance Run Timed trail 50km Middletown, OH, USA 1 Aug Steel City 12 Hour Endurance Run Ruck Timed trail 50km Middletown, OH, USA 1 Aug Stuggu Backyard Ultra Timed trail 50km Ålen, NOR 1 Aug Säfsbygdens BU Timed trail 50km Ulriksberg, SWE 1 Aug TCW Backyard Ultra Timed trail 50km Wölfersheim, DEU 1 Aug The Eddum Trail trail 80km Builth Wells, GBR 1 Aug Trail of the Dragon 50 Km Trail trail 50km Ida Grove, IA, USA 1 Aug Trail of the Dragon 50 Mile Trail trail 80km Ida Grove, IA, USA 1 Aug Trondheim Backyard Timed trail 50km Trondheim, NOR 1 Aug Ultra Trail Haute Ardenne - Jour 1 100 km Trail trail 100km / 62mi Signal de Botrange, BEL 1 Aug Ultra Trail Haute Ardenne - Jour 1 50 km Trail trail 50km Malmedy, BEL 1 Aug Ultra Trail Haute Ardenne - Jour 1 70 km Trail trail 70km Signal de Botrange, BEL 1 Aug Volcanic 50 Trail trail 50km Cougar, WA, USA 1 Aug Waldo 100K Trail Run Trail trail 100km / 62mi Willamette Pass Ski Area, OR, USA 1 Aug Walking Dead Ultra 6H Timed trail 50km Järvafältet, SWE 2 Aug 12 Ultramaraton Powstańca Trail trail 65km Wieliszew, POL 2 Aug Bonshaw Trail Races Trail trail 52km Charlottetown, PE, CAN 2 Aug Erlangen Ultramarathon Trail trail 50km Erlangen, DEU 2 Aug Gauja Trail by UTMB - 50K Trail trail 45km Ligatne, LAT 2 Aug Ragged 75 Stage Race - 50km Split Trail trail 50km Danbury, NH, USA 2 Aug Skyline 50k Endurance Run Trail trail 50km Castro Valley, CA, USA 2 Aug Sri Chinmoy Canberra Trail 100 Trail trail 100km / 62mi Canberra, ACT, AUS 2 Aug Trail Genom Skåne TGS 60 Trail trail 61.7km Hovdala - Hässleholm, SWE 2 Aug Ultra Trail Haute Ardenne - Jour 2 - 57 km Trail trail 57km Station de la Baraque de Fraiture, BEL 2 Aug Viadal Ultra Six Days Timed trail 50km Förslöv, SWE ↑3m 6 Aug Halland Ultra-Beach HUB I: Woodland and Heath, 72 km Trail trail 72km Göteborg, SWE 6 Aug Halland Ultra-Beach Trailrun (HUB 100 miles Norra Banan) Trail trail 161km / 100mi Göteborg, SWE 6 Aug Halland Ultra-Beach Trailrun (HUB 200 miles) Trail trail 322km / 200mi Göteborg, SWE 6 Aug MTC Thames Challenge Stage 1 (Cotswold Ultra) Trail trail 92km Kemble, GBR 7 Aug Anchor Down Ultra 6 Hour Run Timed trail 50km Bristol, RI, USA 7 Aug Backyard Ultra Wiewióra Olecko Timed trail 50km Olecko, POL 7 Aug Capes 46 Km Trail trail 47km Mabou, NS, CAN 7 Aug Halland Ultra-Beach HUB II: Fjorden och Berget Trail trail 40km Onsala, SWE 7 Aug Halland Ultra-Beach HUB III: Pebbles and Rocks, 50 km Trail trail 51km Åsa, SWE 7 Aug MTC Thames Challenge Stage 2 (Oxford Ultra) Trail trail 79km Oxford, GBR 7 Aug Solan Gundersens Bergmaraton Trail trail 48km Alvdal, NOR 7 Aug Trans Scania Trail trail 246km / 153mi Lund, SWE 7 Aug Ultra-Trail du Fjord du Saguenay Trail trail 90km L'Anse-Saint-Jean, CAN 8 Aug 12 Hours On Lovers Lane Timed trail 50km Chester, VT, USA 8 Aug 12 Vikbovändan Trail trail 45km Östra Husby, SWE 8 Aug 12ème Trail des 6 burons Trail trail 79km Riom-es-Montagnes, FRA 8 Aug 14 Stour Valley Path 100km Ultra Run Trail trail 102km / 63mi Newmarket, GBR 8 Aug 18^ 6 ore per le vie di Curinga Timed trail 50km Curinga (CZ), ITA 8 Aug 6 Hours On Lovers Lane Timed trail 50km Chester, VT, USA 8 Aug 7 Borlänge Backyard Timed trail 50km Borlänge, SWE 8 Aug 9 Stour Valley Path 50km Ultra Run Trail trail 50km Sudbury, GBR 8 Aug Angry Owl 12 Hour Ultramarathon Timed trail 50km Salem, OR, USA 8 Aug Angry Owl 6 Hour Ultramarathon Timed trail 50km Salem, OR, USA 8 Aug Baby Backyard Ultra 5K-50K Timed trail 50km Andover, MN, USA 8 Aug Berry Long Run Trail trail 70km Blackwood, VIC, AUS 8 Aug Bunketorp Backyard Ultra Trail Timed trail 50km Bunketorp, Lindome, SWE 8 Aug Crystal Springs Ultra Races Timed trail 50km Wytheville, VA, USA 8 Aug Dahlgren Heritage Rail Trail 50K Trail trail 50km King George, VA, USA 8 Aug Eddy Trail Races Trail trail 50km Annandale, MN, USA 8 Aug Elephant Rock 50km Trail Run Trail trail 50km Bountiful, UT, USA 8 Aug Grue Backyard Timed trail 50km Kirkenaer, NOR 8 Aug Halland Ultra-Beach HUB IV: Marshland and Pasture, 60 km Trail trail 60km Åskloster, SWE 8 Aug Halland Ultra-Beach Trailrun (HUB 100 miles) Trail trail 161km / 100mi Åskloster, SWE 8 Aug Hanmer Springs Backyard Ultra Timed trail 50km Hanmer Springs, NZL 8 Aug Hof Toppers Ultraløp 47km Trail trail 47km Hof, NOR 8 Aug Holter Wald Ultra (HWU) Trail trail 45km Schloß Holte-Stukenbrock, DEU 8 Aug Howl at the Moon 8 Hour Run Timed trail 50km Danville, IL, USA 8 Aug In the Heat of the Night 100km Trail trail 100km / 62mi Anniston, AL, USA 8 Aug In the Heat of the Night 50km Trail trail 50km Anniston, AL, USA 8 Aug Iron Legs 100km Mountain Race Trail trail 100km / 62mi Station Flats, AB, CAN 8 Aug Iron Legs 50 Mile Mountain Race Trail trail 80km Station Flats, AB, CAN 8 Aug Iron Legs 60km Mountain Race Trail trail 60km Station Flats, AB, CAN 8 Aug KAT100 - Marathon Trail Trail trail 51km Fieberbrunn, AUT 8 Aug Kansas City Backyard Ultra Race Timed trail 50km Kansas City, MO, USA 8 Aug Katcina Mosa 100K Mountain Run Trail trail 100km / 62mi Springville, UT, USA 8 Aug Kesugi Ridge Traverse Trail trail 48km Denali State Park, AK, USA 8 Aug Lake Placid Trail Challenge Trail trail 50km Mt Van Hoevenberg, NY, USA 8 Aug Larrabee Lakes Trail trail 50km Bellingham, WA, USA 8 Aug MTC Thames Challenge Stage 3 (Windsor Ultra) Trail trail 76km Henley, GBR 8 Aug Martha Moats Baker Memorial 50k Trail trail 50km Wild Oak Trail Trailhead, VA, USA 8 Aug Martha Moats Baker Memorial 60 km Race Trail trail 60km Wild Oak Trail Trailhead, VA, USA 8 Aug Middle of Nowhere Backyard Ultra Timed trail 50km Närpiö, FIN 8 Aug Mjøsen Backyard Timed trail 50km Hamar, NOR 8 Aug Murderkill Ultramarathons Trail trail 50km Felton, DE, USA 8 Aug Napa Lapa Trail Adventure Timed trail 50km Napa, CA, USA 8 Aug NiedamiRun - Ultramarathon Sudecki 100km Trail trail 96km Niedamirow, POL 8 Aug NiedamiRun - Ultramarathon Sudecki 50km Trail trail 49km Niedamirow, POL 8 Aug One Mile With a Smile 12-Hour Run Timed trail 50km Chesapeake, VA, USA 8 Aug Prospectors 50K Trail trail 50km Cooke City, MT, USA 8 Aug Scenic Rim Ultra 100 Miler Trail trail 161km / 100mi Wyaralong, QLD, AUS 8 Aug Scenic Rim Ultra 105km Trail trail 105km / 65mi Wyaralong, QLD, AUS 8 Aug Scenic Rim Ultra 65km Trail trail 65km Wyaralong, QLD, AUS 8 Aug Sweltering Summer Ultra 8 Hours Run Timed trail 50km Pittsfield, MA, USA 8 Aug Swiss Alps 100 - 50km Trail trail 50km Fiesch VS, CHE 8 Aug TARC Summer Classic 40 Mile Trail trail 64km Medfield, MA, USA 8 Aug TARC Summer Classic 50 km Trail trail 50km Medfield, MA, USA 8 Aug Tahqua Trail Run Trail trail 50km Paradise, MI, USA 8 Aug Ultramaraton Chudy Wawrzyniec 100 Km Trail trail 102km / 63mi Rajczy, POL 8 Aug Ultramaraton Chudy Wawrzyniec 50 Km Trail trail 52km Rajczy, POL 8 Aug Ultramaraton Chudy Wawrzyniec 80 Km Trail trail 82.5km Rajczy, POL 8 Aug Valgrosina Trail Trail trail 70km Grosio (So), ITA 9 Aug Allgäu Panorama Marathon Trail trail 69km Sonthofen, DEU 9 Aug Federation Ultra Trail 50km Trail trail 54km Monarto, SA, AUS 9 Aug Halland Ultra-Beach HUB V: Meadows and Dunes, 50 km Trail trail 50km Olofsbo, Falkenberg, SWE 9 Aug Halland Ultra-Beach HUB VI: Sand and Sea, 50 km Trail trail 50km Tylösand, SWE 9 Aug Halland Ultra-Beach Trailrun (HUB 100 km) Trail trail 102km / 63mi Olofsbo, Falkenberg, SWE 9 Aug MTC Thames Challenge Stage 4 (Richmond Ultra) Trail trail 53km Kingston, GBR 9 Aug Marlette Lake Tahoe 50K Trail trail 50km Spooner Lake, Carson City, NV, USA 9 Aug Monschau-Ultra Marathon Trail trail 56km Monschau/Konzen, DEU 9 Aug Monschau-Ultra Marathon K70 Trail trail 70km Monschau/Konzen, DEU 12 Aug Stranda Fjord Trail Race - 55km Trail trail 55km Opshaug, NOR 12 Aug Stranda Fjord Trail Race - 95km Trail trail 95km Opshaug, NOR 14 Aug Festiwal Słońca 50km Trail trail 50km Golabki, POL 14 Aug Jigger Johnson 50M Trail trail 80km Waterville Valley, NH, USA 14 Aug Prairie Chaos Backyard Ultra Timed trail 50km Winnipeg, MB, CAN 14 Aug The Clint Eastwood Backyard Ultra Timed trail 50km Rocklea, QLD, AUS 15 Aug 6 Karlstad Backyard Timed trail 50km Karlstad, SWE 15 Aug 6 sjöar Trail trail 42.7km Fjällnora friluftsgård, SWE ↑465m 15 Aug 8 Hours of Berm Timed trail 50km Dunnellon, FL, USA 15 Aug BAD DAWG 100 km Ultra Endurance Run Trail trail 100km / 62mi Dixon, MO, USA 15 Aug BAD DAWG 50 Mile Ultra Endurance Run Trail trail 80km Dixon, MO, USA 15 Aug BAD DAWG 50 km Ultra Endurance Run Trail trail 50km Dixon, MO, USA 15 Aug Backyard Ultra San Eduardo Timed trail 50km San Eduardo, Santa Fe, ARG 15 Aug Black Copperhead Sting 50K Trail trail 50km Belmont, NC, USA 15 Aug Boréalys Mont-Tremblant by UTMB - Odyssée Trail trail 78.9km Mont-Tremblant, CAN 15 Aug Bulldog 50k Ultra Run Trail trail 50km Calabasas, CA, USA 15 Aug Bulldog 75k Ultra Run Trail trail 75km Calabasas, CA, USA 15 Aug Charity Mega Run Bingen Trail trail 52km Bingen am Rhein, DEU 15 Aug Cloudcroft Ultra Run Trail trail 53km Cloudcroft, NM, USA 15 Aug Dirty Feet Heartbreak 100km Trail Run Trail trail 100km / 62mi Stake Lake, BC, CAN 15 Aug Dirty Feet Heartbreak 50km Trail Run Trail trail 50km Stake Lake, BC, CAN 15 Aug Dog Days of Summer Timed trail 50km Grandview, TN, USA 15 Aug Fabulous Fahnestock Trail Races Trail trail 50km Cold Spring, NY, USA 15 Aug Fort Frenzy 12 Hour Run Timed trail 50km Vonore, TN, USA 15 Aug Fort Frenzy 6 Hour Run Timed trail 50km Vonore, TN, USA 15 Aug Fort Frenzy 6 Hour Run Ruck Timed trail 50km Vonore, TN, USA 15 Aug Happy 24 Hours 12h Timed trail 50km Sande, NOR 15 Aug Happy 24 Hours 6h Timed trail 50km Sande, NOR 15 Aug Harriman 50k Trail Run Trail trail 50km Island Park, ID, USA 15 Aug Høyjord Rundt og Rundt - 57 km Trail trail 57km Andebu, NOR 15 Aug Høyjord Rundt og Rundt - 80 km Trail trail 80km Andebu, NOR 15 Aug Josef-Kaderhandt Waldlauf Trail trail 50km Menden, DEU 15 Aug Lean Horse Ultra-Marathon 30 Mile Trail trail 48km Custer, SD, USA 15 Aug Lean Horse Ultra-Marathon 50 Mile Trail trail 80km Custer, SD, USA 15 Aug MD Heat Trail Race Trail trail 50km Elkridge, MD, USA 15 Aug Marquette Trail 50 Mile Trail trail 80km Marquette, MI, USA 15 Aug Marquette Trail 50 km Trail trail 50km Marquette, MI, USA 15 Aug Merrell Whale of Trail Trail trail 53km De Hoop Nature Reserve, ZAF 15 Aug Mid Mountain 50K Trail trail 50km Park City, UT, USA 15 Aug Middle Path Ultra and Trail Race Trail trail 52km Peterborough, ON, CAN 15 Aug Morsan & Farsanløpet Trail trail 51km Narvik, NOR 15 Aug Night Claw 8 Hour Timed trail 50km Glen Rose, TX, USA 15 Aug Olympic Mountains 100 km Race Trail trail 100km / 62mi Quilcene, WA, USA 15 Aug Olympic Mountains 50 km Race Trail trail 50km Quilcene, WA, USA 15 Aug One Step Closer Timed trail 50km Seattle, WA, USA 15 Aug Randaberg Backyard Ultra Timed trail 50km Randaberg, NOR 15 Aug Redwood Summer Trail Run Trail trail 50km Oakland, CA, USA 15 Aug Sabines Geburtstagsultra Trail trail 48.6km Otzberg, DEU 15 Aug Shenipsit Striders 50th Fatass Timed trail 50km Tolland, CT, USA 15 Aug South Bay 24 Timed trail 50km San Diego, CA, USA 15 Aug South Bay 24 Day Run Timed trail 50km San Diego, CA, USA 15 Aug Southern Fried 50 Km Race Trail trail 50km Columbus, GA, USA 15 Aug Southern Fried 50 Mile Race Trail trail 80km Columbus, GA, USA 15 Aug Squamish 50mi Trail trail 80km Squamish, BC, CAN 15 Aug Surf Coast Wonderfalls Trail Run Trail trail 52km Lorne, VIC, AUS 15 Aug Tamalpa Headlands 50K Trail trail 51km Muir Beach, CA, USA 15 Aug The Barodorf - 120km Trail trail 50km Bethany, SA, AUS 15 Aug TrollheimenUltra 100km Trail trail 100km / 62mi Todalsøra, NOR 15 Aug Ultra Trail Mount Haituo - UTMH 50Km Trail trail 50km Yanqing District, CHN 15 Aug Ultravasan 45 Trail trail 44.1km Oxberg, SWE 15 Aug Ultravasan90 Trail trail 92km Sälen, SWE 15 Aug Underdown Trail Race 50 Km Trail trail 50km Gleason, WI, USA 15 Aug Valença-RJ Backyard Ultra Timed trail 50km Valenca, RJ, BRA 15 Aug Westminster Night Trail Trail trail 50km Westminster, CO, USA 15 Aug White Pine 50 Mile Backcountry Run Trail trail 80km Garden City, UT, USA 15 Aug Wyeast Howl 50km Race Trail trail 80km Government Camp, OR, USA 16 Aug Anchorage RunFest - 49K Ultra Trail trail 49km Anchorage, AK, USA 16 Aug Another Dam 50K Run Trail trail 50km Englewood, OH, USA 16 Aug Boréalys Mont-Tremblant by UTMB - Tremblante Trail trail 46km Mont-Tremblant, CAN 16 Aug HuBuT Hunsbuckel Trail Trail trail 47km Laubach, DEU 16 Aug Squamish 50km Trail trail 50km Alice Lake, BC, CAN 20 Aug Grand Raid des Pyrénées - Tour du Bastan Trail trail 53km Pla d'Adet, FRA 20 Aug Grand Raid des Pyrénées - Tour du Moudang Trail trail 60km Piau-Engaly, FRA 21 Aug Habanero Hundred 100 Mile Trail trail 161km / 100mi Cat Spring, TX, USA 22 Aug 1 Hjorthagen Ultra Trail 100 - 100M Trail trail 163.8km / 102mi Stockholm, SWE 22 Aug 1 Hjorthagen Ultra Trail 100 - 50M Trail trail 81.9km Stockholm, SWE 22 Aug 6ère Ultra Trail des Chic-Chocs (UTCC) 45 km Trail trail 45km Sainte-Anne-des-Monts, QC, CAN 22 Aug Ahornweg Ultra Etappe 1 Trail trail 67km Dissen, DEU 22 Aug Backyard Ultra Sölvesborg Timed trail 50km Sölvesborg, SWE 22 Aug Black Spur Ultra 50k Trail trail 54km Kimberley, BC, CAN 22 Aug Death by 5k Brandon MS Trail trail 50km Brandon, MS, USA 22 Aug East Fork 50K Trail trail 50km Bethel, OH, USA 22 Aug EcoTrail Trondheim, 50km Trail trail 50km Trondheim, NOR 22 Aug EcoTrail Trondheim, 80km Trail trail 80km Trondheim, NOR 22 Aug Firebird 50km Trail Race Trail trail 50km Windham, ME, USA 22 Aug Gravel Worlds Land Ho Run Trail trail 50km Lincoln, NE, USA 22 Aug Green Lakes Endurance Run 100 km Trail trail 100km / 62mi Fayetteville, NY, USA 22 Aug Green Lakes Endurance Run 12 Hour Timed trail 50km Fayetteville, NY, USA 22 Aug Green Lakes Endurance Run 50 km Trail trail 50km Fayetteville, NY, USA 22 Aug Habanero Hundred 100 Km Trail trail 100km / 62mi Cat Spring, TX, USA 22 Aug Habanero Hundred 50 Km Trail trail 50km Cat Spring, TX, USA 22 Aug Haglebu Backyard Ultra Timed trail 50km Sigdal, NOR 22 Aug Humble Club Backyard Run Nr. 4 Timed trail 50km Wendeburg, DEU 22 Aug Idre Fjällmaraton Trail trail 45km Idre, SWE ↑1,410m 22 Aug Jug End Loop 6-Hour Ultra Timed trail 50km Egremont, MA, USA 22 Aug Langhus Backyard Timed trail 50km Langhus, NOR 22 Aug Leipziger 100 km Lauf am Auensee Trail trail 50km Leipzig, DEU 22 Aug Matterhorn Ultraks Trail trail 49km Zermatt, CHE 22 Aug Moose Mountain Trail Races Trail trail 50km Bragg Creek, AB, CAN 22 Aug Osnabrücker 6h Lauf am Rubbenbruchsee Timed trail 50km Osnabrück, DEU 22 Aug Run the Hawk Trail Runs 12h Timed trail 50km Middleton, WI, USA 22 Aug Run the Hawk Trail Runs 6h Timed trail 50km Middleton, WI, USA 22 Aug Skåbu fjellmaraton (Jotunheimvegen Ultra) Trail trail 59km Bygdin, NOR 22 Aug Telluride Mountain Run Trail trail 64km Telluride, CO, USA 22 Aug Terra Sans Pave - Terathlon 8-Hour Timed trail 50km Morton Grove, IL, USA 22 Aug The Devils Key Trail Race Trail trail 66.6km Duntroon, ON, CAN 22 Aug Transcend 65km Ultra or Relay Trail trail 65km Bullsbrook, WA, AUS 22 Aug Tromsø Mountain Challenge Ultra Trail trail 50km Tromsø, NOR 22 Aug Twisted Branch Trail Run Trail trail 100km / 62mi Naples, NY, USA 22 Aug Wild Turkey 50 Miles Fun Run Trail trail 80km Fairmont, WV, USA 22 Aug Wild Turkey 50 km Fun Run Trail trail 50km Fairmont, WV, USA 23 Aug Ahornweg Ultra Etappe 2 Trail trail 47km Lienen, DEU 23 Aug Eidsvoll Verk 6-timers Timed trail 50km Eidsvoll Verk, NOR 23 Aug Nocterra Quitters Run Timed trail 50km Powell, OH, USA 23 Aug RAG-Hartfüßler-Trail 58 km Trail trail 58km Saarbrücken, DEU 23 Aug Run Your Outback Trail Festival Trail trail 56km Marrakai, NT, AUS 25 Aug Burning Man Ultramarathon Trail trail 50km Black Rock City, NV, USA 27 Aug 11ème Orsières-Champex-Chamonix (OCC) Trail trail 57km Orsieres, CHE 28 Aug IV Backyard Ultra Radomsko Timed trail 50km Radomsko, POL 28 Aug Taurlandia Ultra Trail trail 50km Taurkalne, LAT 28 Aug Underdogs - The Backyard Ultra Timed trail 50km Brebu, ROU 29 Aug 14º Ultramarathon 12Hs Campinas Run Timed trail 50km Campinas, SP, BRA 29 Aug 9 Sillamäe Ultra 100km Trail trail 100km / 62mi Sillamäe, EST 29 Aug Arctic Alta Ultra Trail trail 100km / 62mi Alta, NOR 29 Aug Austria Backyard Ultra - Kirchschlag bei Linz Timed trail 50km Kirchschlag, AUT 29 Aug Backcountry Rise 50 km Race Trail trail 50km Toutle, WA, USA 29 Aug Backyard Ås Timed trail 50km Ås, NOR 29 Aug Baker Trail 50 Mile UltraChallenge Trail trail 80km Butler, PA, USA 29 Aug Black Bear Ultra Trail Trail trail 50km Waterville Valley, NH, USA 29 Aug Bornholm Backyard Ultra Timed trail 50km Klemensker, DNK 29 Aug Běhej Lesy Jizerská 50 Km Trail trail 50km Bedrichov, CZE 29 Aug Chupacabra Endurance 10-hour Run Timed trail 50km Westville, USA 29 Aug Continental Divide Trail Run Trail trail 50km Steamboat Springs, CO, USA 29 Aug Fjällmaraton Sälen Trail trail 42.6km Sälen, SWE ↑1,043m 29 Aug Grand Traverse Mountain Run Trail trail 65km Crested Butte, CO, USA 29 Aug Hell Creek 50k Trail trail 50km Sylvan Grove, KS, USA 29 Aug Hell on Hogsback Endurance Challenge Timed trail 50km Lakewood, OH, USA 29 Aug Highland Fling Race Trail trail 85km Milngavie/Glasgow, GBR 29 Aug Höga Kusten Trail - The Original 45K Trail trail 43km Friluftsbyn, SWE ↑1,798m 29 Aug Höga Kusten Trail - The Ultimate 60K Trail trail 60km FriluftsByn, Höga Kusten, SWE 29 Aug Karwendellauf 52 km Scharnitz-Pertisau Trail trail 52km Scharnitz, AUT 29 Aug Le Defi de la Tortue 12 Hour Race Timed trail 50km Shawinigan, QC, CAN 29 Aug Le Defi de la Tortue 6 Hour Race Timed trail 50km Shawinigan, QC, CAN 29 Aug Levanger Backyard Timed trail 50km Levanger, NOR 29 Aug Midwest States 50 Trail trail 50km Westboro, WI, USA 29 Aug Mountainman Großarltal Trail trail 50km Großarl, AUT 29 Aug Mountainman Großarltal 68km Trail trail 68km Großarl, AUT 29 Aug North Country Trail Run 50 Mile Trail trail 80km Wellston, MI, USA 29 Aug North Country Trail Run 50 km Trail trail 50km Wellston, MI, USA 29 Aug Race the North Face Brandon Hills 50km Race Trail trail 50km Brandon, MB, CAN 29 Aug Rock Hawk Trail trail 50km Castle Rock, CO, USA 29 Aug RunPA Trail Jamboree 12h Timed trail 50km Newmanstown, PA, USA 29 Aug RunPA Trail Jamboree 6h Timed trail 50km Newmanstown, PA, USA 29 Aug Rynningeviken Längre 6-timmars Timed trail 50km Örebro, SWE 29 Aug Salt Springs Field Forest & Falls Trail trail 50km Franklin Forks, PA, USA 29 Aug ScoCo 50 Trail trail 50km Long Grove, IA, USA 29 Aug Styrkeprøven Rett Vest Trail trail 45km Gullbotten, NOR 29 Aug Styrkeprøven Rett Vest Extreme Trail trail 60km Gullbotten, NOR 29 Aug Tanri Lake Race Timed trail 50km Miramonte,CA, USA 29 Aug TranSelkirks - The Stoked Ultra Trail trail 50km Revelstoke, BC, CAN 29 Aug Ultramaratona Sergipe 100km Trail trail 100km / 62mi Estancia, Se, BRA 29 Aug Ultramarsch Südheide 60km Trail trail 60km Südheide, DEU 29 Aug Wildcat 100 - 50 Km Race Trail trail 50km Pensacola, FL, USA 29 Aug Wildcat 100 - 50 Mile Race Trail trail 80km Pensacola, FL, USA 29 Aug Yeti Snakebite Timed trail 50km Lithia Springs, GA, USA 29 Aug Zero Dark Ultra Timed trail 50km Spokane, WA, USA 29 Aug Zero Dark Ultra Ruck Timed trail 50km Spokane, WA, USA 29 Aug Zombie Backyard Ultra Timed trail 50km Pelham, AL, USA 30 Aug Austerlitz Ultra Trail trail 50km Zeist, NLD 30 Aug Burgwald Märchen Marathon Trail trail 52km Rauschenberg, DEU 30 Aug Crystal Springs 50 km Summer Trail Run Trail trail 50km Woodside, CA, USA 30 Aug Five Fields Farm Races Trail trail 50km Bridgton, ME, USA 30 Aug Temptation 200 - 50km only Ultra Race Trail trail 50km Forest City, IL, USA 30 Aug Ultramaratona Sergipe 50km Trail trail 50km Estancia, Se, BRA 14 Aug La Mision Brazil - Short Mision 55 Kms Trail trail 55km Passa Quatro, MG, BRA 14 Aug La Mision Brazil - 110 Kms Trail trail 110km / 68mi Passa Quatro, MG, BRA 14 Aug La Mision Brazil - Half Mision 80 Kms Trail trail 80km Passa Quatro, MG, BRA

September

3 Sept Cassino Ultra Race 65K Trail trail 65km Barra do Chui, RS, BRA 4 Sept 13º Ultra Desafio 80 Km Sana Trail trail 80km Macae, RJ, BRA 4 Sept 2ème Backyard Infinity Trail Nancy Timed trail 50km Frouard, FRA 4 Sept Dark Divide 50 km Race Trail trail 50km Randle, WA, USA 4 Sept Dusk to Dawn Relay Race Timed trail 50km Wendover, USA 4 Sept Firelighter 50 Coastal Ultra Marathon Trail trail 76km Holyhead, GBR 5 Sept 100km Ciudad de Santander Trail trail 100km / 62mi Santander, ESP 5 Sept 10^ Dolomiti di Brenta Trail 45km Trail trail 45km Molveno (TN), ITA 5 Sept 10^ Dolomiti di Brenta Trail 64km Trail trail 64km Molveno (TN), ITA 5 Sept 11 Nässjö 6-timmars Timed trail 50km Nässjö, SWE 5 Sept 12 horas Ciudad de Santander Timed trail 50km Santander, ESP 5 Sept 16 Jättelångt 70 km Trail Trail trail 70km Norrtälje, SWE 5 Sept 5 Mossarun 51K Trail trail 51km Lindås, Älmhult, SWE 5 Sept 50km Ciudad de Santander Trail trail 50km Santander, ESP 5 Sept 6 Enskede Backyard Kvarterslopp short distance Timed trail 50km Enskede, SWE 5 Sept 6 Enskede Backyard Kvarterslopp standard distance Timed trail 50km Enskede, SWE 5 Sept 6 horas Ciudad de Santander Timed trail 50km Santander, ESP 5 Sept 8 Mossarun 24h Timed trail 50km Lindås, Älmhult, SWE 5 Sept Adidas Terrex Infinite Trails 60K Trail trail 62km Bad Hofgastein, AUT 5 Sept Backyard Fauske Timed trail 50km Fauske, NOR 5 Sept Bad Beard Events 6 Shooter Oli Kai 6 Hour Timed trail 50km Chattanooga, TN, USA 5 Sept Bad Beard Events 6 Shooter Oli Kai 9 Hour Timed trail 50km Chattanooga, TN, USA 5 Sept Badgerland F/X 12 Hour Run (day) Timed trail 50km Delafield, WI, USA 5 Sept Badgerland F/X 6 Hour Run (day) Timed trail 50km Delafield, WI, USA 5 Sept Badgerland F/X 6 Hour Run (night) Timed trail 50km Delafield, WI, USA 5 Sept Booneville Backroads Ultra 50 Km Trail trail 50km Booneville, IA, USA 5 Sept Caminhos de Rosa 150 Km Trail trail 153km / 95mi Morro Da Garca, MG, BRA 5 Sept Cherry Hill Farm Ultra Trail trail 50km Gorham, ME, USA 5 Sept Chojnik Karkonoski Festiwal Biegowy Trail trail 50km Jelenia Gora, Sobieszow, POL 5 Sept Creede Mountain Run Trail trail 50km Creede, CO, USA 5 Sept Desafio Utu Trail trail 57.5km Capilla Del Monte, ARG 5 Sept FallApple 50 Mile Run Trail trail 80km South Mountain Reservation, NJ, USA 5 Sept FallApple 50 km Run Trail trail 50km South Mountain Reservation, NJ, USA 5 Sept Finlayson Arm 50 km Race Trail trail 50km Victoria, BC, CAN 5 Sept Front Range Ultra Dayze 12h Timed trail 50km Loveland, CO, USA 5 Sept Göteborg Trailrun Trail trail 45km Göteborg, SWE 5 Sept Hawk Hundred - 50 Mile Trail Run Trail trail 80km Lawrence, KS, USA 5 Sept Hvittingfoss Trail Challange Trail trail 52km Hvittingfoss, NOR 5 Sept I2 IF backyard ultra Timed trail 50km Karlstad, SWE 5 Sept Iron Mountain 30 Mile Trail Run Trail trail 48km Damascus, VA, USA 5 Sept Iron Mountain 40 Mile Trail Run Trail trail 64km Damascus, VA, USA 5 Sept Iron Mountain 50 Mile Trail Run Trail trail 80km Damascus, VA, USA 5 Sept La Chute du Diable 50 Km Trail trail 50km St-Mathieu-du-Parc, QC, CAN 5 Sept La Chute du Diable 75 Km Trail trail 75km St-Mathieu-du-Parc, QC, CAN 5 Sept Labor Day Triple (Sat) Trail trail 50km Winter Park, FL, USA 5 Sept Laps at the Lakes - 12h Timed trail 50km Pauanui, NZL 5 Sept Laps at the Lakes - 6h Timed trail 50km Pauanui, NZL 5 Sept Mayrhofen Ultraks Zillertal - RK50 Trail trail 50km Mayrhofen, AUT 5 Sept Noble Canyon 50k Trail trail 50km Mount Laguna, CA, USA 5 Sept Nordmarkstravern (DobbelTravern) Trail trail 61km Oslo, NOR 5 Sept Palatina Backyard Ultra Timed trail 50km Erfweiler, DEU 5 Sept S.O.S. 12Hours Ruck Timed trail 50km Middleburg, FL, USA 5 Sept S.O.S. 12Hours Run Timed trail 50km Middleburg, FL, USA 5 Sept S.O.S. 6Hours Run Timed trail 50km Middleburg, FL, USA 5 Sept Saksumdal Ultra Trail trail 51km Saksumdal, NOR 5 Sept Scenic Circles Backyard Ultra Timed trail 50km Timaru, NZL 5 Sept Six-O 50km Trail Run Trail trail 50km Cleburne, TX, USA 5 Sept Steep Ultra 50 km Race Trail trail 50km Corner Brook, NL, CAN 5 Sept TARC Fall Classic 50 Km Trail trail 50km Carlisle, MA, USA 5 Sept TARC Fall Classic 50 Mile Trail trail 80km Carlisle, MA, USA 5 Sept The Blood Run at The Good Earth Farm 12 Hour Timed trail 50km Lennox, SD, USA 5 Sept The Blood Run at The Good Earth Farm 6 Hour Timed trail 50km Lennox, SD, USA 5 Sept The Ridum - Ridgeway Ultra Marathon Trail trail 48km Hengoed, GBR 5 Sept Tyin Filefjell Ultra Trail trail 53km Øye, NOR 5 Sept Wildman Harz - Ultra 55k Trail trail 55km Wildemann, DEU 5 Sept Wyländer Backyard Ultra Timed trail 50km Dachsen, CHE 6 Sept 10^ Etna Extreme 100 km del Vulcano Trail trail 100km / 62mi Bronte, ITA 6 Sept 11º Caminhos de Rosa 50 Km Trail trail 50km Paraopeba, MG, BRA 6 Sept 3 Valleys Runningworks Marathon Trail trail 50km Bickley, WA, AUS 6 Sept Diablo 50 km Trail Run Trail trail 50km Clayton, CA, USA 6 Sept Jay Peak 50k Ultra Trail Race Trail trail 50km Jay, VT, USA 6 Sept Labor Day Triple (Sun) Trail trail 50km Winter Park, FL, USA 6 Sept Labor Pain 12 Hour Endurance Trail Run Timed trail 50km Reading, PA, USA 6 Sept Light Horse Ultra - 12h Timed trail 50km Yellagonga Regional Park, WA, AUS 6 Sept Light Horse Ultra - 6h Timed trail 50km Yellagonga Regional Park, WA, AUS 6 Sept Mayrhofen Ultraks Zillertal - TUX070 Trail trail 70km Mayrhofen, AUT 6 Sept Not-A-Sprint 12 Endurance Run Timed trail 50km Forest City, NC, USA 6 Sept Not-A-Sprint 6 Endurance Run Timed trail 50km Forest City, NC, USA 6 Sept Walk in the Park 50K Trail trail 50km Kamloops, BC, CAN 6 Sept Wilcox Wild Trail trail 50km Stony Creek, NY, USA 7 Sept Labor Day Triple (Mon) Trail trail 50km Winter Park, FL, USA 11 Sept 17 Bieg 7 dolin - Bieg na dystansie 61 km Trail trail 61km Piwniczna-Zdroj, POL 11 Sept American Heroes Races - 6 Hour Run Timed trail 50km Longmont, CO, USA 11 Sept American Heroes Races - 9 hour 11 minute Run Trail trail 50km Longmont, CO, USA 11 Sept Garmin Ultra Race Radków Trail trail 78km Zalew Radkowski, POL 11 Sept Haliburton Forest 50 km Race Trail trail 50km West Guilford, ON, CAN 11 Sept Khardung La Challenge (Ladakh Ultramarathon) Trail trail 72km Khardung Village, Ladakh, IND 11 Sept Mendocino Running Festival 12 Hours Timed trail 50km Mendocino, CA, USA 11 Sept Mendocino Running Festival 6 Hours Timed trail 50km Mendocino, CA, USA 11 Sept Sörmlands 100 - 100mi Trail trail 171km / 106mi Gripholms slott, Mariefred, SWE 11 Sept Ultra trail Harricana de Charlevoix 125 Km Trail trail 125km / 78mi La Malbaie, QC, CAN 11 Sept Ultra trail Harricana de Charlevoix 65 Km Trail trail 65km La Malbaie, QC, CAN 11 Sept Ultra trail Harricana de Charlevoix 80 Km Trail trail 80km La Malbaie, QC, CAN 11 Sept Ultra-Trail Great Wall by UTMB - 70K Trail trail 70km Dajingmen, CHN 12 Sept 10 Oslo Maraton - Oslotrippelen Trail trail 73km Oslo, NOR 12 Sept 13 Lejonbragden 100km Trail trail 100km / 62mi Lund, SWE 12 Sept 24h Pełną Parą Timed trail 50km Wolsztyn, POL 12 Sept 4 Falsterbo Backyard Ultra Summer Timed trail 50km Falsterbo, SWE 12 Sept 4 Nybro Backyard 12h Timed trail 50km Svartbäcksmåla, Nybro, SWE 12 Sept 6 Bocksten Vineyard Backyard Ultra Timed trail 50km Tvååker, SWE 12 Sept 6 Stunden Lauf Werl Timed trail 50km Werl, DEU 12 Sept 9 Lejonbragden 50km Trail trail 50km Lund, SWE 12 Sept Asta Maries 12 Timers Løb Night Timed trail 50km Copenhagen, DNK 12 Sept Asta Maries 6 Timers Løb Timed trail 50km Copenhagen, DNK 12 Sept Backyard Everest Timed trail 50km Athlestone, SA, AUS 12 Sept Backyard Ultra Rospuda Timed trail 50km Bakalarzewo, POL 12 Sept Berkeley Trail Adventure Trail trail 50km Berkeley, CA, USA 12 Sept Bieg 7 dolin - 100 km Ultramaraton Trail trail 100km / 62mi Piwniczna-Zdroj, POL 12 Sept Black Lung Ultra Trail trail 62km Nordegg, AB, CAN 12 Sept Boulder Field 100 - 100 km Ultra Run Trail trail 100km / 62mi Jim Thorpe, PA, USA 12 Sept Boulder Field 100 - 50 km Ultra Run Trail trail 50km Jim Thorpe, PA, USA 12 Sept Coal Miner Trail trail 161km / 100mi Roslyn, WA, USA 12 Sept DM 100 km 2026 - Berlin Trail trail 100km / 62mi Berlin, DEU 12 Sept Desafio Internacional Rota da Baleia Trail trail 80km Garopaba, SC, BRA 12 Sept Devil on the Divide Ultra Trail trail 50km Empire, CO, USA 12 Sept Dirty Fox Five Hour Trail Race Timed trail 50km Fort Wayne, IN, USA 12 Sept Epic East Gate Race Trail trail 50km Riding Mountain National Park, MB, CAN 12 Sept Germantown 50k Trail trail 50km Germantown, OH, USA 12 Sept Great Olympic Adventure 50km Trail Run Trail trail 50km Port Angeles, WA, USA 12 Sept Hocking Hills Indian Run Trail trail 60km Logan, OH, USA 12 Sept Lap the Valley Backyard Ultra Timed trail 50km Boyne Valley, QLD, AUS 12 Sept Lost Soul Ultra 50 km Race Trail trail 50km Lethbridge, AB, CAN 12 Sept Megunticook 50km Race Trail trail 50km Camden, ME, USA 12 Sept Mountain Creek Mayhem Trail trail 50km Gardners, PA, USA 12 Sept Nærsnes backyard Timed trail 50km Naersnes, NOR 12 Sept Odyssey Trail Running Rampage 40 Mile Trail trail 64km Douthat State Park, VA, USA 12 Sept Old Forge (NY) Ultra Marathon Trail trail 50km Old Forge, NY, USA 12 Sept Oldenburger Hospizlauf Trail trail 85km Oldenburg/Holstein, DEU 12 Sept Patriots Ultra Run Trail trail 50km Olathe, KS, USA 12 Sept Pawling 24 Hour Trail Running Festival - 12h Timed trail 50km Pawling, NY, USA 12 Sept Pawling 24 Hour Trail Running Festival - 6h Timed trail 50km Pawling, NY, USA 12 Sept Pine Creek Challenge 50 Miles Trail trail 80km Wellsboro, PA, USA 12 Sept Pleasant Creek Trail Run Trail trail 45km Palo, IA, USA 12 Sept Priest Lake Marathon 50k Trail trail 50km Priest Lake, ID, USA 12 Sept RUN Winschoten 100 km Trail trail 100km / 62mi Winschoten, NLD 12 Sept RUN Winschoten 50 km Trail trail 50km Winschoten, NLD 12 Sept Rebecca Mountain 50 Mile Race Trail trail 80km Sylacauga, AL, USA 12 Sept Riverbend Park 12 Hour Ultra Timed trail 50km Jupiter, FL, USA 12 Sept Riverbend Park 50 km Ultra Trail trail 50km Jupiter, FL, USA 12 Sept Run Woodstock - Freak 50 km Trail trail 50km Pinckney, MI, USA 12 Sept Run Woodstock - Peace Love and 50 Miles Trail trail 80km Pinckney, MI, USA 12 Sept Schledehausener Berglauf Timed trail 50km Bissendorf, DEU 12 Sept Shawangunk Ridge Trail 30-mile Run Trail trail 48km Cragsmoor, NY, USA 12 Sept Sherando Park Endurance Athletic Run 50km Challenge Trail trail 50km Stephens City, VA, USA 12 Sept Snow Mountain Ranch 50 km Trail Race Trail trail 50km Granby, CO, USA 12 Sept Sri Chinmoy Peace-Mile 6-Stunden Lauf München Timed trail 50km München, DEU 12 Sept Suffolk Coastal Path 50km Trail trail 50km Lowestoft, GBR 12 Sept Sugg Farm Ultra Trail trail 80km Holly Springs, NC, USA 12 Sept Superior Fall Trail Races 50 Mile Trail trail 80km Finland, MN, USA 12 Sept Surf Coast Century 100 km Trail trail 100km / 62mi Anglesea, VIC, AUS 12 Sept Surf Coast Century 50 km Trail trail 50km Anglesea, VIC, AUS 12 Sept Sörmlands 100 - 100km Trail trail 100km / 62mi Öster Malma, Nyköping, SWE 12 Sept Sörmlands 100 - 50km Trail trail 50km Nyköping, SWE 12 Sept Südthüringentrail - Heldentrail 65 km Trail trail 65km Suhl, DEU 12 Sept Südthüringentrail - Riesentrail 47 km Trail trail 47km Suhl, DEU 12 Sept TFS Frontyard Timed trail 50km Trondheim, NOR 12 Sept The Cross-Connecticut Run for Mental Health Awareness Trail trail 90km West Suffield, CT, USA 12 Sept The Golden Ultra 60 km Ultramarathon Trail trail 60km Golden, BC, CAN 12 Sept The Last Boyscout Timed trail 50km Goreville, IL, USA 12 Sept The Last Stand of Yamashita Trail trail 50km Hungduan Ifugao, PHI 12 Sept Timely Nonsense - 12h Timed trail 50km Chicago, IL, USA 12 Sept Timely Nonsense - 6h Timed trail 50km Chicago, IL, USA 12 Sept Trail Ljubljana 54 km Trail trail 54km Ljubljana, SVN 12 Sept Trash Panda 50km Race Trail trail 50km Chattanooga, TN, USA 12 Sept Ultra-Trail Great Wall by UTMB - 50K Trail trail 50km Dajingmen, CHN 12 Sept Virgil Crest 50 Mile Ultra Trail trail 80km Virgil, NY, USA 12 Sept Virgil Crest 50 km Ultra Trail trail 50km Virgil, NY, USA 12 Sept Wildstrubel by UTMB - 50K Trail trail 55km Adelboden, CHE 12 Sept Youngstown Ultra Trail Classic 50K Trail trail 50km Youngstown, OH, USA 13 Sept 6 ore di Ostia Timed trail 50km Ostia, ITA 13 Sept Asta Maries 6 Timers Løb Night Timed trail 50km Copenhagen, DNK 13 Sept Barossa Run - 50km Trail trail 50km Lyndoch, SA, AUS 13 Sept Crowell Hilaka Trail Run Trail trail 50km Richfield, OH, USA 13 Sept Lessinia Legend Run 50 Trail trail 50km Velo Veronese, ITA 13 Sept Macedonia Trail 50km Race Trail trail 50km Chattanooga, TN, USA 13 Sept Pisgah Mountain Trail Race Trail trail 50km Chesterfield, NH, USA 13 Sept Rock Cut Hobo 50K Trail trail 50km Rockford, IL, USA 13 Sept Sorta Mountain Stage Race Trail trail 50km Borden, IN, USA 13 Sept Spendenlauf des TV Hasslinghausen Timed trail 50km Sprockhövel, DEU 13 Sept The Rut Mountain Runs Trail trail 50km Big Sky, MT, USA 13 Sept Yuxi Gaolu Mountain Trail Running Trail trail 50km Yuxi City, CHN 18 Sept Backyard Ultra Zagłębie Timed trail 50km Dabrowa Gornicza, POL 18 Sept Floripa Ultra Trail Run 100km Trail trail 100km / 62mi Florianopolis, SC, BRA 18 Sept Paraty by UTMB - UTSB 110 Trail trail 108km / 67mi Paraty, Rj, BRA 18 Sept Red River Ultrafest Timed trail 50km Moorhead, MN, USA 18 Sept Red River Ultrafest Ruck Timed trail 50km Moorhead, MN, USA 19 Sept 13 Black River Run 100 Miles Trail trail 161km / 100mi Västerås, SWE 19 Sept 14 Black River Run 50 Miles Trail trail 80km Västerås, SWE 19 Sept 2 Black River Run 30 Miles Trail trail 48km Västerås, SWE 19 Sept 2ème 6 heures de Cocagne Timed trail 50km Sainte-Foy-d'Aigrefeuille, FRA 19 Sept 3 Limhamn September Backyard Ultra Timed trail 50km Limhamn, SWE 19 Sept 3 Skaftö 24hr Backyard Ultra Timed trail 50km Fiskebäckskil, SWE 19 Sept Austria Backyard Ultra - Kirchdorf in Tirol Timed trail 50km Kirchdorf in Tirol, AUT 19 Sept Backyard Kristiansand Timed trail 50km Kristiansand, NOR 19 Sept Beaver Flat 50 Ultra Marathon Trail trail 50km Stewart Valley, SK, CAN 19 Sept Beluga Ultra Trail Trail trail 45km Tadoussac, Quebec, CAN 19 Sept Brookfield Classic Trail trail 50km Brookfield, NY, USA 19 Sept Bryce 50 Mile Trail Run Trail trail 80km Bryce Canyon City, UT, USA 19 Sept Bryce 50 km Trail Run Trail trail 50km Bryce Canyon City, UT, USA 19 Sept Bryce 60 km Trail Run Trail trail 60km Bryce Canyon City, UT, USA 19 Sept Collie River Ultra 100km Trail trail 100km / 62mi Collie, WA, AUS 19 Sept Crimson Canyon 60 Km Ultramarathon Trail trail 60km Richfield, UT, USA 19 Sept Death by 5k Tulsa Trail trail 50km Tulsa, OK, USA 19 Sept Dream Nation Apparel 100km Trail trail 100km / 62mi Duncan, BC, CAN 19 Sept Dream Nation Apparel 12 Hour Timed trail 50km Duncan, BC, CAN 19 Sept Dream Nation Apparel 12h - 6h Split Timed trail 50km Duncan, BC, CAN 19 Sept Ettinger Backyard Ultra Timed trail 50km Ettingen, CHE 19 Sept Fit in Lautern Lauf - Rund um die Waschmühle Timed trail 50km Kaiserslautern, DEU 19 Sept Flagstaff to Grand Canyon Stagecoach Line 55km Trail trail 55km Flagstaff, AZ, USA 19 Sept Freaky Creeky 50k Race Trail trail 50km Vernon, BC, CAN 19 Sept Fýri Trail by Salomon Trail trail 56km Hemsedal, NOR 19 Sept Gaspin Through the Aspens Trail trail 80km American Fork, UT, USA 19 Sept Goosebumps 6 Hour Run Timed trail 50km La Crosse, WI, USA 19 Sept Grindstone 100 Km Trail trail 100km / 62mi Swoope, VA, USA 19 Sept Grindstone 50 Km Trail trail 50km Swoope, VA, USA 19 Sept Hardmoors 60 Trail trail 101km / 63mi Guisborough, GBR 19 Sept HauernUltra Trail trail 54km Drammen, NOR 19 Sept Hurricane 100K Trail trail 100km / 62mi Hurricane, WV, USA 19 Sept Iron Will 50 Km Trail trail 50km Junction City, KS, USA 19 Sept Iron Will 50 Miles Trail trail 80km Junction City, KS, USA 19 Sept Kau Coffee Trail Runs Trail trail 50km Pahala, HI, USA 19 Sept Kilkenny Ridge 50mi Race Trail trail 80km Stark, NH, USA 19 Sept Last Dot Standing 8 Hours Timed trail 50km Belleville, WI, USA 19 Sept Last Dot Standing 8 Hours - 8PM Timed trail 50km Belleville, WI, USA 19 Sept Lazken Trail Timed trail 50km Osses, FRA 19 Sept Limestone Rocks! 8 Hour Race Timed trail 50km Kankakee, IL, USA 19 Sept Marji Gesick 50 Mile Ultra Race Trail trail 80km Ishpeming, MI, USA 19 Sept Paraty by UTMB - PTR 55 Trail trail 58.5km Paraty, Rj, BRA 19 Sept Peak District Challenge - Bronze Ultra 50km Trail trail 50km Hathersage, GBR 19 Sept Pilliga Ultra Trail trail 50km Coonabarabran, NSW, AUS 19 Sept Pilot Mountain to Hanging Rock 50K Ultra Trail trail 50km Pinnacle, NC, USA 19 Sept Pilot Mountain to Hanging Rock 50M Ultra Trail trail 80km Pinnacle, NC, USA 19 Sept Race Tekapo 50km Trail trail 50km Lake Tekapo, NZL 19 Sept Rivers Edge Ultra - The Magilla Trail trail 100km / 62mi Devon, AB, CAN 19 Sept Rivers Edge Ultra - The Muskeg Trail trail 50km Devon, AB, CAN 19 Sept Rivers Edge Ultra - The Wallace Trail trail 80km Devon, AB, CAN 19 Sept Run Rabbit Run 50 Mile Endurance Run Trail trail 80km Steamboat Springs, CO, USA 19 Sept Spiral 6 Hour Race Timed trail 50km London, GBR 19 Sept Squatchayanda Trail Festival (Wild Goose) Trail trail 161km / 100mi Hewitt, NJ, USA 19 Sept Standing Boy Trail Festival Trail trail 50km Columbus, GA, USA 19 Sept Sur75 Ultramarathon Trail trail 75km Surigao City, PHI 19 Sept Table Rock 50 km Ultra Trail trail 50km Morganton, NC, USA 19 Sept Teanaway Country 50 Race Trail trail 50km Cle Elum, WA, USA 19 Sept That Dam Hill 6 Hour Run Timed trail 50km London, ON, CAN 19 Sept The Barkley Fall Classic Trail trail 50km Wartburg, TN, USA 19 Sept The Dirt Circuit - 12 Hour Endurance Trail Runs Timed trail 50km Morristown, TN, USA 19 Sept The Dirt Circuit - 6 Hour Endurance Trail Runs Timed trail 50km Morristown, TN, USA 19 Sept The Dirt Circuit - 6 Hour Endurance Trail Runs Ruck Timed trail 50km Morristown, TN, USA 19 Sept The Final Countdown - Tribute Timed trail 50km Martinsburg, WV, USA 19 Sept Three Sisters Skyline 50km Race Trail trail 50km Sisters, OR, USA 19 Sept Trails 4 Tails 40 Mile Run Trail trail 64km Hanover, PA, USA 19 Sept Tryon Farm Trail 50K Trail trail 50km Michigan City, IN, USA 19 Sept Ultra Fest Trail trail 161km / 100mi Easton, WA, USA 19 Sept Ultra Trail Forillon Trail trail 55km Gaspe, CAN 19 Sept Vietnam Mountain Marathon 70km Trail trail 70km Sapa town, VIE 19 Sept YOTE 50km Run Trail trail 50km Laurelville, OH, USA 20 Sept Austria Backyard 7+1 - Kirchdorf/Tirol Timed trail 50km Kirchdorf, AUT 20 Sept Herforder Highway Ultra - 108km Trail trail 108km / 67mi Herford, DEU 20 Sept Herforder Highway Ultra - 48km Trail trail 48km Herford, DEU 20 Sept Herforder Highway Ultra - 66km Trail trail 66km Herford, DEU 20 Sept Herforder Highway Ultra - 90km Trail trail 90km Herford, DEU 20 Sept Northeimer Tageslicht Ultra Timed trail 50km Northeim, DEU 20 Sept The Great North Walk 50 km Trail trail 50km Patonga, NSW, AUS 20 Sept Trail degli Eroi Trail trail 46km Semonzo del Grappa, ITA 20 Sept Wukayan Ultra 50km Trail trail 50km Taian Township, TWN 22 Sept 100 km Brasil Trail trail 100km / 62mi Sao Lourenco (MG), BRA 23 Sept 1000 Km Brasil - 50Km Trail trail 50km Sao Lourenco, BRA 25 Sept Red Feather Trail Jamboree - 50mi Trail trail 80km Red Feather Lakes, CO, USA 26 Sept 2 Mattila Trail Run Trail trail 48km Mattila, SWE 26 Sept 4 Östgöta Ultra Trail 165K Trail trail 165km / 103mi Kisa, SWE 26 Sept 5 Valleys Ultra 55km Trail trail 58km Waterhead, Ambleside, GBR 26 Sept 5 Östgöta Ultra Trail 110K Trail trail 110km / 68mi Kisa, SWE 26 Sept 6 Backyard Ultra Ljungby Timed trail 50km Ljungby, SWE 26 Sept 8 Östgöta Ultra Trail 55K Trail trail 55km Kisa, SWE 26 Sept 9a Bettona Crossing Trail trail 50km Bettona (PG), ITA 26 Sept A Lenda Backyard Timed trail 50km Cajamar, SP, BRA 26 Sept Aindlinger Kleeblattmarsch Trail trail 100km / 62mi Aindling, DEU 26 Sept Backyard Stavanger Timed trail 50km Stavanger, NOR 26 Sept Bakihagan, en backyard ultra på Årnes Timed trail 50km Årnes, NOR 26 Sept Bogus 50 Km Race Trail trail 50km Boise, ID, USA 26 Sept Bogus 50 Mile Race Trail trail 80km Boise, ID, USA 26 Sept Conquer the Canyon Trail Race Trail trail 100km / 62mi Claude, TX, USA 26 Sept Crested Butte 50 Mile Ultra Trail trail 80km Crested Butte, CO, USA 26 Sept Crested Butte 55 km Ultra Trail trail 55km Crested Butte, CO, USA 26 Sept Der Ruf der alten Mauern - 70km Trail trail 70km Stebach, DEU 26 Sept Der Ruf der alten Mauern - 90km Trail trail 90km Isenburg, DEU 26 Sept Dick Collins Firetrails 100 km Trail trail 100km / 62mi Castro Valley, CA, USA 26 Sept Dick Collins Firetrails 50 Mile Trail trail 80km Castro Valley, CA, USA 26 Sept Ecotrail Wicklow 46km Trail trail 46.5km Bray, IRL 26 Sept Estes Epic 50km Trail Run Trail trail 50km Estes Park, CO, USA 26 Sept Fishermanstrail - Sommer Edition Trail trail 58km Alt Schwerin, DEU 26 Sept Flagstaff Sky Peaks 50 Km Mountain Run Timed trail 50km Flagstaff, AZ, USA 26 Sept Flagstaff Sky Peaks 50 Miles Mountain Run Timed trail 80km Flagstaff, AZ, USA 26 Sept Flatrock 50K Trail trail 50km Independence, KS, USA 26 Sept Four Hills and one lake cross-country race Trail trail 50km Antu County, CHN 26 Sept Gelderse Poort Ultra Trail trail 50km Berg en Dal, NLD 26 Sept Half Day at the Lake Timed trail 50km Evanston, IL, USA 26 Sept Hindsight Ultra Trail Runs 100 km Trail trail 100km / 62mi Dixon, IL, USA 26 Sept Hindsight Ultra Trail Runs 50 km Trail trail 50km Dixon, IL, USA 26 Sept Hot Rod 12 Hour Ultra Timed trail 50km Bowling Green, KY, USA 26 Sept Hot Rod 12 Hour Ultra (night) Timed trail 50km Bowling Green, KY, USA 26 Sept Hungerford Trail Race 28.3 Mile Trail trail 45km Big Rapids, MI, USA 26 Sept Hungerford Trail Race 50 Mile Trail trail 80km Big Rapids, MI, USA 26 Sept Joes 11 Hour Night Ruck At The Hamptons Timed trail 50km Hampton, VA, USA 26 Sept Joes 11 Hour Night Run At The Hamptons Timed trail 50km Hampton, VA, USA 26 Sept Joes 5 Hour Night Run At The Hamptons Timed trail 50km Hampton, VA, USA 26 Sept KROP - Kaizen Rite of Passage Trail trail 50km Tahlequah, OK, USA 26 Sept Lakes TrailFest Trail trail 50km Palmer, AK, USA 26 Sept Last Man Backyard Cervia Timed trail 50km Cervia (RA), ITA 26 Sept Laurel Highlands Ultra - Fall Classic Trail trail 50km Ohiopyle, PA, USA 26 Sept Lonely Mountain Ultra 100mi Trail trail 161km / 100mi Orange, NSW, AUS 26 Sept Lonely Mountain Ultra 104km Trail trail 104km / 65mi Orange, NSW, AUS 26 Sept Lonely Mountain Ultra 50km Trail trail 50km Orange, NSW, AUS 26 Sept Lonely Mountain Ultra 50mi Trail trail 80km Orange, NSW, AUS 26 Sept Mammoth Trail Fest Trail trail 50km Mammoth Lakes, CA, USA 26 Sept MetroWest Backyard Ultra Timed trail 50km Needham, MA, USA 26 Sept Miami 100 Race 50 km Trail trail 50km Miami, FL, USA 26 Sept Montana Meltdown 12h Timed trail 50km Bozeman, MT, USA 26 Sept Montana Meltdown 4h Timed trail 50km Bozeman, MT, USA 26 Sept Mount Disappointment Mountain Race Trail trail 50km Mt. Wilson, CA, USA 26 Sept Mount Taylor 50 km Race Trail trail 50km Grants, NM, USA 26 Sept Nattland Backyard Ultra Timed trail 50km Bergen, NOR 26 Sept OBrien 50 km Race Trail trail 50km Marine on St Croix, MN, USA 26 Sept Oslo Trail Challenge 55km Trail trail 55km Gjerdrum, NOR 26 Sept Parallel of Latitude 8 Hour Endurance Run Timed trail 50km Dryden, NY, USA 26 Sept Queen of the Ridge Timed trail 50km Arena, WI, USA 26 Sept Red Feather Trail Jamboree - 50k Trail trail 50km Red Feather Lakes, CO, USA 26 Sept Rockcut Ultra Marathon Trail trail 50km Twillingate, NL, CAN 26 Sept Rockin Rockwoods Trail Race Trail trail 53km Wildwood, MO, USA 26 Sept Rocky Peak Trail Races (Bandit Ultra) Trail trail 50km Simi Valley, CA, USA 26 Sept Roter-Sand-Trail Timed trail 50km Harthausen, DEU 26 Sept Run Off-the-Grid 50k Trail trail 50km Mattawa, ON, CAN 26 Sept Run The Red Desert 50km Race Trail trail 50km Rock Springs, WY, USA 26 Sept Russian Championship 100 km Nizhny Novgorod Trail trail 100km / 62mi Nizhny Novgorod, RUS 26 Sept Salt Pans Ultra Marathon 100 km Trail trail 100km / 62mi Mosu / Makgadikgadi, BOT 26 Sept Salt Pans Ultra Marathon 50 km Trail trail 51km Mosu / Makgadikgadi, BOT 26 Sept Sangre de Cristo Ultra 100 km Race Trail trail 100km / 62mi Westcliffe, CO, USA 26 Sept Sangre de Cristo Ultra 50 Mile Race Trail trail 80km Westcliffe, CO, USA 26 Sept Sangre de Cristo Ultra 50 km Race Trail trail 50km Westcliffe, CO, USA 26 Sept Sky Island 50K Trail trail 50km Fort Davis, TX, USA 26 Sept The Big Schloss 50K Trail trail 50km Lost City, WV, USA 26 Sept The Ivy Trek 50 km Ultra Trail trail 50km Quitman, MS, USA 26 Sept Tick Tock 12 Hour Ultra Florida Timed trail 50km Lakeland, FL, USA 26 Sept Tick Tock 6 Hour Ultra Florida Timed trail 50km Lakeland, FL, USA 26 Sept Tron Ultra Endurance Timed trail 50km Trondsvangan, NOR 26 Sept Tullner Lauftage - 100km Trail trail 100km / 62mi Tulln an der Donau, AUT 26 Sept Tullner Lauftage - 6h Timed trail 50km Tulln an der Donau, AUT 26 Sept Tuttlinger Backyard Ultra Timed trail 50km Tuttlingen, DEU 26 Sept Ultramaraton Leśna Doba ULD9.0 Timed trail 50km Dobroń, POL 26 Sept Ultrapalooza 100km Trail trail 100km / 62mi Osawatomie, KS, USA 26 Sept Ultrapalooza 100mi Trail trail 161km / 100mi Osawatomie, KS, USA 26 Sept Ultrapalooza 50km Trail trail 50km Osawatomie, KS, USA 26 Sept Ultrapalooza 50mi Trail trail 80km Osawatomie, KS, USA 26 Sept Water Gap 50 km Race Trail trail 50km Milford, PA, USA 26 Sept We Walk! Marathon Trail trail 50km Saint Bonifacius, MN, USA 26 Sept West Line Winder 50 km Race Trail trail 50km Buena Vista, CO, USA 26 Sept Wild Wahatoya Runs Trail trail 50km La Veta, CO, USA 26 Sept Woodstock Warrior Trail trail 80km Woodstock, VA, USA 26 Sept Woodstock Warrior LMS Ruck Timed trail 50km Woodstock, VA, USA 27 Sept Farm to Farm 50 Mile Ultra Run Trail trail 80km Freeport, ME, USA 27 Sept Farm to Farm 50 km Ultra Run Trail trail 50km Freeport, ME, USA 27 Sept Fred von der Heydt Memorial 6 Hour 60th Birthday Run Timed trail 50km Kings Park, NY, USA 27 Sept Internationaler Kärnten Super Marathon Trail trail 50km Feldkirchen, AUT 27 Sept Koh Chang Trail Trail trail 55km Koh Chang, THA 27 Sept Race for the Refuge Timed trail 50km Sudbury, MA, USA 27 Sept Sawatch Ascent 50km Race Trail trail 50km Nathrop, CO, USA 27 Sept Sechs Stunden Urwaldlauf Timed trail 50km Saarbrücken, DEU 27 Sept Spartan Trail - San Jose Trail Challenge Trail trail 50km San Jose, CA, USA 27 Sept UTDM - Ultra Trail del Moscato Trail trail 54km Santo Stefano Belbo (CN), ITA 27 Sept Vermont 50 Miles Ultra Run Trail trail 80km Brownsville, VT, USA 27 Sept Vermont 50 km Ultra Run Trail trail 50km Brownsville, VT, USA

October

1 Oct 5 UTLMonteux Ultra Tour du Lac de Monteux Backyard Ultra Timed trail 50km Monteux, FRA 1 Oct NJ One Day 12 Hour Race Timed trail 50km Augusta, NJ, USA 1 Oct NJ One Day 50 km Race Trail trail 50km Augusta, NJ, USA 1 Oct NJ One Day 6 Hour Race Timed trail 50km Augusta, NJ, USA 2 Oct 2 Helvetia Backyard Ultra Timed trail 50km Oberwil-Lieli, CHE 2 Oct Chihuahua by UTMB - 50K Trail trail 56km Barrancas del Cobre, MEX 2 Oct DC Peaks 100 Trail trail 161km / 100mi North Salt Lake, UT, USA 3 Oct 1 Vindelälvsterrängen Trail trail 85km Väven, Umeå, SWE 3 Oct 12 Gotland Ultramarathon Trail trail 51km Hallshuk, SWE 3 Oct 12 Hour Adventure Trail Run Timed trail 50km Triangle, VA, USA 3 Oct 12 h Lauf Freudenstadt Timed trail 50km Freudenstadt-Grüntal, DEU 3 Oct 2 Nordiska Mästarnas Backyard Ultra Timed trail 50km Bromölla, SWE 3 Oct 3 Schmellbackyard Timed trail 50km Leinfelden-Echterdingen, DEU 3 Oct 4 Moore Ultratrail Marathon Trail trail 53km Langenhagen, DEU 3 Oct A Stroll in The Park 12-Hour Endurance Run Timed trail 50km Suwanee, GA, USA 3 Oct A Stroll in The Park 8-Hour Endurance Run Timed trail 50km Suwanee, GA, USA 3 Oct Above the Clouds Ultra Trail trail 50km Woodland Park, CO, USA 3 Oct Arches Marathon Trail trail 50km Moab, UT, USA 3 Oct Back On the Ranch Trail 12 Hour Run Timed trail 50km Los Olivos, CA, USA 3 Oct Back On the Ranch Trail 6 Hour Run Timed trail 50km Los Olivos, CA, USA 3 Oct Baker Lake 50K Ultra Trail Run Trail trail 50km Baker Lake, WA, USA 3 Oct Beaver Trail Trail trail 51km Poulx, FRA 3 Oct Bison Ultra-Trail 100 Trail trail 104km / 65mi Suprasl, POL 3 Oct Bison Ultra-Trail 50 Trail trail 50km Suprasl, POL 3 Oct Bison Ultra-Trail 70 Trail trail 70km Suprasl, POL 3 Oct Breckerfelder Flower Power Ultra 100 Trail trail 100km / 62mi Breckerfeld, DEU 3 Oct Breckerfelder Flower Power Ultra 50 (früh) Trail trail 50km Breckerfeld, DEU 3 Oct Breckerfelder Flower Power Ultra 50 (spät) Trail trail 50km Breckerfeld, DEU 3 Oct Buck 50 Trail trail 50km Kattskill bay, NY, USA 3 Oct Bull Mountain 50 Km Epic Run Trail trail 50km Dahlonega, GA, USA 3 Oct CNX 100K Ultra Marathon Trail trail 100km / 62mi Chiang Mai, THA 3 Oct CNX 50K Ultra Marathon Trail trail 50km Chiang Mai, THA 3 Oct Cuyamaca 100 km Endurance Run Trail trail 100km / 62mi Julian, CA, USA 3 Oct DC Peaks 50 Mi Trail trail 80km Kaysville, UT, USA 3 Oct DC Peaks 55 Km Trail trail 55km Kaysville, UT, USA 3 Oct Damascus Festival of Miles Timed trail 50km Damascus, VA, USA 3 Oct Dana Peak Trail Run Trail trail 100km / 62mi Harker Heights, TX, USA 3 Oct Dartmoor Way Granite 50mi Trail trail 82km Scorriton, GBR 3 Oct El Diablo Hundo Trail trail 161km / 100mi Doyline, LA, USA 3 Oct Epping Forest 50 km Trail trail 50km Wanstead Flats, GBR 3 Oct Export 100 Trail trail 161km / 100mi Export, PA, USA 3 Oct Fire Tower 100 km Trail Race Trail trail 100km / 62mi Hinckley, MN, USA 3 Oct Fire Tower 50 km Trail Race Trail trail 50km Hinckley, MN, USA 3 Oct Flisa Backyard Timed trail 50km Åsnes, NOR 3 Oct Flutters and Foliage Endurance Run Timed trail 50km Cohoes, NY, USA 3 Oct Garden City Backyard Ultra Timed trail 50km Toowoomba, QLD, AUS 3 Oct Hagemanns Rundbaneløp Trail trail 53km Svelvik, NOR 3 Oct Legends Never Die Trail trail 55km Ketchum, ID, USA 3 Oct Nesbyen Backyard Timed trail 50km Nesbyen, NOR 3 Oct Night Owl 6 Hour Shuffle Race Timed trail 50km Lake Elmo, MN, USA 3 Oct Outdoor X 12 Hour Endurance Ruck Timed trail 50km Dayton, OH, USA 3 Oct Outdoor X 12 Hour Endurance Run Timed trail 50km Dayton, OH, USA 3 Oct Perpetua Coast (Oregon Coast) 50k Trail trail 50km Waldport, OR, USA 3 Oct Pisgah 55.5K Running Race Trail trail 55.5km Pisgah Forest, NC, USA 3 Oct Red Barn 12 Hour Challenge Timed trail 50km Lykens, PA, USA 3 Oct Red Barn 6 Hour Challenge Timed trail 50km Lykens, PA, USA 3 Oct Relentless at the Ark Trail Race Trail trail 50km Denholm, QC, CAN 3 Oct Robin Ames Foundation Trail Trail trail 50km Bruceton Mills, WV, USA 3 Oct RuKT Rund um die Kipshagener Teiche Trail trail 45.3km Schloß Holte-Stukenbrock, DEU 3 Oct Rundweg Winterthur Ultra Trail trail 61km Brütten, CHE 3 Oct Saddles 100 Trail trail 80km Prescott, AZ, USA 3 Oct Sage Burner Trail Run Trail trail 50km Gunnison, CO, USA 3 Oct Shawnee 50 Mile Trail Run Trail trail 80km West Portsmouth, OH, USA 3 Oct Shawnee 50 km Trail Run Trail trail 50km West Portsmouth, OH, USA 3 Oct Swiss Valley 50 km Trail Race Trail trail 50km Peosta, IA, USA 3 Oct Tale of Two Trails Trail trail 80km Shawnee, KS, USA 3 Oct Taubertal 100 km Trail trail 100km / 62mi Rothenburg o.T., DEU 3 Oct Taubertal 50 km Trail trail 50km Rothenburg o.T., DEU 3 Oct Taubertal 70 km Trail trail 70km Rothenburg o.T., DEU 3 Oct The Bear Chase 50 Mile Trail trail 80km Lakewood, CO, USA 3 Oct The Bear Chase 50 km Trail trail 50km Lakewood, CO, USA 3 Oct The Hennepin Hundred - 50 Km Run Trail trail 50km Sterling, IL, USA 3 Oct The Hennepin Hundred - 50 Mile Run Trail trail 80km Sterling, IL, USA 3 Oct The Last Wolf 50K Trail trail 50km Kings Mountain, NC, USA 3 Oct The Last Wolf Last Man Standing Timed trail 50km Kings Mountain, NC, USA 3 Oct The Naturalist Trail Race Trail trail 50km Franklin, NC, USA 3 Oct Tromsø Backyard Ultra Timed trail 50km Tromsø, NOR 3 Oct Ultra Bremerhaven-Bremen-Nord Trail trail 71km Bremerhaven, DEU 3 Oct Unity Ultra Run @ Einheitslauf 2026 Trail trail 51km Glöwen, DEU 3 Oct UpRiver Running Fall Races Trail trail 50km Thunder Bay, ON, CAN 3 Oct WC-50 Ultra Trail Marathon 50km Trail trail 50km Charlotte, NC, USA 3 Oct WC-50 Ultra Trail Marathon 50mi Trail trail 80km Charlotte, NC, USA 3 Oct Whistler 50 Race Trail trail 50km Whistler, BC, CAN 3 Oct Whitefish Trail Legacy 50km Run Trail trail 50km Whitefish, MT, USA 3 Oct Wienerwald Ultra Trail Trail trail 50km Purkersdorf, AUT 3 Oct Yankee Springs Fall Trail Run Festival Trail trail 50km Middleville, MI, USA 3 Oct e2h10k-100km Ultrarace Trail trail 100km / 62mi Calw-Altburg, DEU 3 Oct e2h10k-50km Ultrarace Trail trail 50km Calw-Altburg, DEU 4 Oct 50km di Calabria Trail trail 50km Curinga (CZ), ITA 4 Oct 800 Heroes - Fugui Cape Lighthouse 105Km Trail trail 105.3km / 65mi Shimen District, TWN 4 Oct 800 Heroes - Fugui Cape Lighthouse 57Km Trail trail 57.4km Shimen District, TWN 4 Oct Black Forest 100k Ultra Race Trail trail 100km / 62mi North Bend, PA, USA 4 Oct Blues Cruise 50K Ultra Trail Trail trail 50km Reading, PA, USA 4 Oct Mine Akiyoshidai Geopark Ultra Marathon Trail trail 100km / 62mi Mine City, Yamaguchi Prefecture, JPN 4 Oct Ultra Silesia Marathon Trail trail 50km Chorzow, POL 4 Oct Wolf Creek Canyon Relay 28 Mile Race Trail trail 45km Wolf Creek, MT, USA 9 Oct 2 Pfälzer Weinsteig UTPW 170 Trail trail 173km / 108mi Schweigen-Rechtenbach, DEU 9 Oct Backyard Ultra Warszawa-Bemowo Timed trail 50km Warszawa, POL 9 Oct X. UltraKotlina50 Trail trail 55.6km Jelenia Gora, POL 9 Oct XI. UltraKotlina80 Trail trail 79km Janowice Wielkie, POL 10 Oct 10ème Grand Raid de Camargue 66km Trail trail 66km Salin-de-Giraud, FRA 10 Oct 11ème Les 12 heures de Royan - course Timed trail 50km Royan, FRA 10 Oct 12 hores en pista dOlot Timed trail 50km Olot, ESP 10 Oct 25 Sörmland Ultra Marathon Trail trail 51km Stockholm, SWE 10 Oct 6 hores en pista dOlot Timed trail 50km Olot, ESP 10 Oct Arrowhead 12 Hour Endurance Run Timed trail 50km Johnston City, IL, USA 10 Oct Arrowhead 12 Hour Endurance Run (night) Timed trail 50km Johnston City, IL, USA 10 Oct Arrowhead 6 Hour Endurance Run Timed trail 50km Johnston City, IL, USA 10 Oct Blue Ridge 50km Ultra Trail trail 50km Blue Ridge, GA, USA 10 Oct Break the Bank Trail trail 80km Duluth, MN, USA 10 Oct Can Lake 50 Mile Ultra Trail trail 80km Canandaigua, NY, USA 10 Oct Can Lake 50 km Ultra Trail trail 50km Canandaigua, NY, USA 10 Oct Canyon De Chelly Ultra Trail trail 55km Chinle, AZ, USA 10 Oct Caveman Challenge at Waterloo Lake Trail trail 50km Denison, TX, USA 10 Oct DeClue Loops 50 km Trail Race Trail trail 50km Wildwood, MO, USA 10 Oct Death By a Mile Timed trail 50km Palmer, AK, USA 10 Oct Defiance 50k Trail trail 50km Tacoma, WA, USA 10 Oct Des Plaines River 50 Km Trail Race Trail trail 50km Libertyville, IL, USA 10 Oct Des Plaines River 50 Miles Trail Race Trail trail 80km Libertyville, IL, USA 10 Oct Devils Den Ultra 12h Timed trail 50km Bradford, VT, USA 10 Oct DieSPECKer LaufSPECKtakel 51km Trail trail 51km Diespeck, DEU 10 Oct DieSPECKer LaufSPECKtakel 72km Trail trail 72km Diespeck, DEU 10 Oct Farmdale Trail Run 30 Mile Trail trail 48km East Peoria, IL, USA 10 Oct Farmdale Trail Run 50 Mile Trail trail 80km East Peoria, IL, USA 10 Oct Forest of Dean Ultra Marathon Trail trail 55km Beechenhurst, GBR 10 Oct Gold Coast 50 Road Race Trail trail 50km Coolangatta, QLD, AUS 10 Oct Grizzly Ultra Marathon Trail trail 50km Canmore, AB, CAN 10 Oct Hainesport Hundred 12 Hour Endurance Run Summer Timed trail 50km Hainesport, NJ, USA 10 Oct Hamar Backyard Ultra 50M Timed trail 50km Hamar, NOR 10 Oct Heidi-Challenge - Etappe1 Tour Werder Trail trail 62km Potsdam, DEU 10 Oct Hume & Hovell 100km Trail trail 100km / 62mi Tumbarumba, NSW, AUS 10 Oct Hume & Hovell 50 km Trail trail 51.6km Tumbarumba, NSW, AUS 10 Oct Hustle in the Heartland 8hr Run Timed trail 50km Lebanon, IN, USA 10 Oct Indian Summer Ultra 100 km Trail trail 100km / 62mi Gasselte, NLD 10 Oct Indian Summer Ultra 50 km Trail trail 50km Gasselte, NLD 10 Oct Indian Summer Ultra 75 km Trail trail 75km Gasselte, NLD 10 Oct Indiana Trail 50 Mile Trail trail 80km Albion, IN, USA 10 Oct Indiana Trail 75 Mile Trail trail 121km / 75mi Albion, IN, USA 10 Oct Kettlebell Kountdown Trail trail 50km Pelham, AL, USA 10 Oct Krukes Ultra-Trail Challenge 12 laps Trail trail 80km Saksvik, NOR 10 Oct Krukes Ultra-Trail Challenge 8 laps Trail trail 54km Saksvik, NOR 10 Oct Krukes Ultra-Trail Challenge, Last One Standing Timed trail 50km Saksvik, NOR 10 Oct L3 - Laatzen-Leinewiesen-Lauf Trail trail 47km Laatzen, DEU 10 Oct Lake Yahou 50k Trail trail 50km Anniston, AL, USA 10 Oct Le Grizz 50 Mile Ultramarathon Trail trail 80km Polebridge, MT, USA 10 Oct Long Hunter 50km Trail Run Trail trail 50km Hermitage, TN, USA 10 Oct Loop Til You Drop Backyard Ultra Timed trail 50km Turvey, GBR 10 Oct Mad Meadows Trail trail 80km Leavenworth, WA, USA 10 Oct Mile Madness Endurance Run 12h Timed trail 50km Rocklin, CA, USA 10 Oct Mile Madness Endurance Run 6h Timed trail 50km Rocklin, CA, USA 10 Oct Nummela Backyard Ultra Timed trail 50km Nummela, Vihti, FIN 10 Oct Oil Creek 50 km Trail Run Trail trail 50km Titusville, PA, USA 10 Oct Rainbow Ridge Trail trail 50km Rainbow, OR, USA 10 Oct River Ridge Ultra Trail trail 48km Spokane, WA, USA 10 Oct Sasquatch Shuffle TX 50 km Race Trail trail 50km McCall, ID, USA 10 Oct Sticks n Stones Trail Race Trail trail 50km Dundas, ON, CAN 10 Oct Storm the Day (Sunrise to Sunset) Timed trail 50km Winona, MN, USA 10 Oct Suffer Better 50km Fall Trail Run Trail trail 50km Pine, CO, USA 10 Oct Sunset & Cider Trail Races Trail trail 50km Auburn, CA, USA 10 Oct Thats No Moon Ultras 50K Trail trail 50km Silverado, CA, USA 10 Oct Thats No Moon Ultras 50M Trail trail 80km Silverado, CA, USA 10 Oct The Biggest Little Ultra - 12h Fri Timed trail 50km Sparks, NV, USA 10 Oct The Biggest Little Ultra - 12h Sat Timed trail 50km Sparks, NV, USA 10 Oct The Biggest Little Ultra - 24h Fri Timed trail 50km Sparks, NV, USA 10 Oct The Biggest Little Ultra - 24h Sat Timed trail 50km Sparks, NV, USA 10 Oct The Biggest Little Ultra - 6h Fri Timed trail 50km Sparks, NV, USA 10 Oct The Biggest Little Ultra - 6h Sat Timed trail 50km Sparks, NV, USA 10 Oct The Golden 6 Hour Timed trail 50km Liberty, WA, USA 10 Oct The Mammoth at High Hope Ranch Trail trail 100km / 62mi Glen Rose, TX, USA 10 Oct The Ultra Bird 12 Hour Trail Race Timed trail 50km West Olive, MI, USA 10 Oct The Ultra Bird 6 Hour Trail Race Timed trail 50km West Olive, MI, USA 10 Oct The Ultra Bird 6 Hour Trail Race Ruck Timed trail 50km West Olive, MI, USA 10 Oct Ultramaratona in Reggia 12h Timed trail 50km Reggia di Rivalta Reggio Emilia, ITA 10 Oct Ultramaratona in Reggia 24h Timed trail 50km Reggia di Rivalta Reggio Emilia, ITA 10 Oct Virginia Trail Running Festival Trail trail 161km / 100mi Max Meadows, VA, USA 10 Oct Wolverine State Trail trail 50km Petosky, MI, USA 11 Oct 16ème Trail Vallée de Joux 51km Trail trail 58km L'Abbaye, CHE 11 Oct Autumn Harvest 12 Hour Timed trail 50km Marble Falls, TX, USA 11 Oct Bath & Bristol Railway 50k Trail trail 50km Bath, GBR 11 Oct Bizz Johnson 50 km Trail Run Trail trail 50km Westwood-Susanville, CA, USA 11 Oct Burgenlauf Bad Belzig Trail trail 50km Bad Belzig, DEU 11 Oct Free State Trail 40 Miles Run Trail trail 64km Lawrence, KS, USA 11 Oct Glacial Trail 50 Mile Race Trail trail 80km Greenbush, WI, USA 11 Oct Glacial Trail 50 km Race Trail trail 50km Greenbush, WI, USA 11 Oct Green Monster Trail Challenge 50K Trail trail 50km Wellsboro, PA, USA 11 Oct Heidi-Challenge - Etappe2 Tour Teltowkanal Trail trail 66km Potsdam, DEU 11 Oct Midstate Massive 30 Mile Ultra Trail Trail trail 50km New Ipswich, NH, USA 11 Oct Perseløpet ultra 50km Trail trail 50km Eidsvoll, NOR 11 Oct Rick ODonnell 8-hour Ultra Challenge Timed trail 50km Boonsboro, MD, USA 11 Oct Rocky Gap 50k Trail trail 50km Flintstone, MD, USA 11 Oct Trail Trilogy HAURAKI 50Five Trail trail 55km Kaiaua, NZL 11 Oct Trail Trilogy HAURAKI HUNDEE Trail trail 100km / 62mi Kaiaua, NZL 11 Oct Ultramaratona in Reggia 6h Timed trail 50km Reggia di Rivalta Reggio Emilia, ITA 12 Oct Heidi-Challenge - Etappe3 Tour City Berlin Trail trail 63km Spandau, DEU 13 Oct Heidi-Challenge - Etappe4 Tour Havel Nord Trail trail 68km Spandau, DEU 14 Oct Heidi-Challenge - Etappe5 Tour Havel Süd Trail trail 57km Spandau, DEU 16 Oct BadgerPalooza Timed trail 50km Williamston, NJ, USA 16 Oct Pony Express Trail 50 Mile Trail trail 80km Faust, UT, USA 16 Oct Shake Your Trail Feather Trail Run Trail trail 50km Charleston, IL, USA 17 Oct 13ème Bromont Ultra 55 Km Trail Run Trail trail 55km Bromont, QC, CAN 17 Oct 13ème Bromont Ultra 80 Km Trail Run Trail trail 80km Bromont, QC, CAN 17 Oct 6 Rönninge Backyard Run Timed trail 50km Rönninge, SWE 17 Oct 7 U3 Backyard Timed trail 50km Ulricehamn, SWE 17 Oct Aluminio Backyard Ultra Timed trail 50km Sao Paulo, SP, BRA 17 Oct Antelope Island Fall Classic 100 Mile Trail trail 161km / 100mi Syracuse, UT, USA 17 Oct Antelope Island Fall Classic 50K Trail trail 50km Syracuse, UT, USA 17 Oct Austria Backyard Ultra - Seekirchen Timed trail 50km Seekirchen am Wallersee, AUT 17 Oct Backyard Ultra World Team Championships - Austria Timed trail 50km Seekirchen am Wallersee, AUT 17 Oct Backyard Ultra World Team Championships - Bermuda Timed trail 50km Bermuda, BER 17 Oct Big Hill Pond Walking Tall Trail trail 50km Pocahontas, TN, USA 17 Oct Black River Trail Classic 50 Km Trail trail 50km Millston, WI, USA 17 Oct Black River Trail Classic 85 Km Trail trail 85km Millston, WI, USA 17 Oct Bobcat Trail Race 50k Trail trail 50km Colorado Springs, CO, USA 17 Oct Bohemian Alps 50 km Ultramarathon Trail trail 53km Brainard, NE, USA 17 Oct Cactus to Cloud Trail Run Trail trail 50km Cloudcroft, NM, USA 17 Oct Cahuilla Rez Ultra 12h Run Timed trail 50km Anza, CA, USA 17 Oct Cahuilla Rez Ultra 6h Run Timed trail 50km Anza, CA, USA 17 Oct Cave Creek Thriller 50K Race Trail trail 50km Cave Creek, AZ, USA 17 Oct Clear Creek Ultra Timed trail 50km Crystal Springs, MS, USA 17 Oct Creemore Vertical Challenge 50 miles Trail Run Trail trail 80km Creemore, ON, CAN 17 Oct Creemore Vertical Challenge 55 km Trail Run Trail trail 55km Creemore, ON, CAN 17 Oct Delaware Trail Fest Timed trail 50km Bear, DE, USA 17 Oct Delirium Ultra 12 Hour Run Timed trail 50km Beaufort, SC, USA 17 Oct Delirium Ultra 6 Hour Run Timed trail 50km Beaufort, SC, USA 17 Oct Dutch Backyard Ultra Zeewolde Timed trail 50km Zeewolde, NLD 17 Oct Flatrock Georgia Trail trail 50km Dacula, GA, USA 17 Oct Ghost Train Rail Trail Race 30 Mile Trail trail 48km Brookline, NH, USA 17 Oct Hootenanny Endurance Run 12h Timed trail 50km Gregory, MI, USA 17 Oct Hootenanny Endurance Run 8h Timed trail 50km Gregory, MI, USA 17 Oct Horseshoe Bend Ultras Trail trail 80km Page, AZ, USA 17 Oct Indian Creek Fifties - 50 Miles Trail trail 80km Sedalia, CO, USA 17 Oct Indian Creek Fifties - 55 Km Trail trail 55km Sedalia, CO, USA 17 Oct Inks Lake Trail Run Ruck Trail trail 50km Burnet, TX, USA 17 Oct Jordan River Blitz Backyard Timed trail 50km South Jordan, UT, USA 17 Oct Lake Hodges Trail Fest 50K Trail trail 50km Escondido, CA, USA 17 Oct Lemkowyna Ultra Trail 48 Trail trail 48km Iwonicz-Zdroj, POL 17 Oct Loopet Loppet 12 Hour Run Timed trail 50km Minneapolis, MN, USA 17 Oct Loopet Loppet 6 Hour Run Timed trail 50km Minneapolis, MN, USA 17 Oct Love Never Ends Trail Run Trail trail 80km McKinney, TX, USA 17 Oct Man Against Horse 50 Mile Race Trail trail 80km Prescott, AZ, USA 17 Oct Minnie Ha Ha 12 Hour Run Timed trail 50km Saint Louis, MO, USA 17 Oct Minnie Ha Ha 6 Hour Run Timed trail 50km Saint Louis, MO, USA 17 Oct No Mans Land Trail Run Trail trail 50km Lake Charles, LA, USA 17 Oct Nocturnal 12 Timed trail 50km Rochester, NY, USA 17 Oct O-SEE Ultra Trail 100km Trail trail 100km / 62mi Oybin, DEU 17 Oct O-SEE Ultra Trail 50km Trail trail 50km Oybin, DEU 17 Oct O-SEE Ultra Trail 75km Trail trail 75km Oybin, DEU 17 Oct Palo Duro 50 Km Trail Run Trail trail 50km Amarillo, TX, USA 17 Oct Palo Duro 50 Mile Trail Run Trail trail 80km Amarillo, TX, USA 17 Oct Phoenix Trail Race Trail trail 50km London, ON, CAN 17 Oct Piedmont 8 Hour Run Timed trail 50km Powhatan, VA, USA 17 Oct Presque Isle 12 Hour Endurance Classic Timed trail 50km Erie, PA, USA 17 Oct Presque Isle 12 Hour Endurance Classic Short Track Timed trail 50km Erie, PA, USA 17 Oct Pumpkin Holler 50 Km Race Trail trail 50km Tahlequah, OK, USA 17 Oct Rock Bridge Revenge 50 km Race Trail trail 50km Columbia, MO, USA 17 Oct Rogue Gorge 50 km Race Trail trail 50km Union Creek, OR, USA 17 Oct Rogue Gorge 50 miles Race Trail trail 80km Union Creek, OR, USA 17 Oct Roller Coaster Run Trail trail 46km Kalorama, VIC, AUS 17 Oct Rule the Roost Timed trail 50km Chillicothe, OH, USA 17 Oct Schwindegger 6 Stundenlauf - DUV Meisterschaft Timed trail 50km Schwindegg, DEU 17 Oct Silver Falls Trail Run Trail trail 50km Silver Falls, OR, USA 17 Oct Sinnemahone Ultra Marathon Trail trail 53km Emporium, PA, USA 17 Oct Sonoma Fall Classic Trail trail 161km / 100mi Healdsburg, CA, USA 17 Oct South Texas 50km Ultra Trail trail 50km Leakey, TX, USA 17 Oct St. Pats 12 Hour Race Timed trail 50km South Bend, IN, USA 17 Oct Surf the Murph 50 Mile Run Trail trail 80km Savage, MN, USA 17 Oct Surf the Murph 50 km Run Trail trail 50km Savage, MN, USA 17 Oct Taupo Ultramarathon 100km Trail trail 100km / 62mi Waihaha Bridge, NZL 17 Oct Tecumseh Trail Challenge Trail trail 50km Nashville, IN, USA 17 Oct The Blackall 100 Trail trail 100km / 62mi Mapleton, QLD, AUS 17 Oct The Blackall 50 Trail trail 50km Mapleton, QLD, AUS 17 Oct The Ceely Rose Twelve Hour Survival Run Timed trail 50km Lucas, OH, USA 17 Oct The Itch 50km Race Trail trail 50km Ocala, FL, USA 17 Oct The Jackalope Lope Trail trail 52km Redding, CA, USA 17 Oct The Peak 50k Race Trail trail 50km Julian, CA, USA 17 Oct Viewpoint Endurance Challenge Timed trail 50km Whittier, NC, USA 17 Oct Volda Bakgårdsultra Timed trail 50km Volda, NOR 17 Oct Wild Duluth 100 km Races Trail trail 100km / 62mi Duluth, MN, USA 17 Oct Wild Duluth 50 km Races Trail trail 50km Duluth, MN, USA 17 Oct Yunqiu Mountain Trail - MMY 50K Trail trail 48.3km Mount Yun, CHN 18 Oct Bimblers Bluff 50k Trail trail 50km Guilford, CT, USA 18 Oct City to Sky 50K Trail trail 50km Missoula, MT, USA 18 Oct G.O.A.T.z 50 Mile Trail Run Trail trail 80km Omaha, NE, USA 18 Oct G.O.A.T.z 50km Trail Run Trail trail 50km Omaha, NE, USA 18 Oct Lengericher Ultratrail Trail trail 46km Lengerich, DEU 18 Oct Little Duck 50k Trail trail 50km Windham, ME, USA 18 Oct Neskollen Frontyard Timed trail 50km Hvam, NOR 18 Oct Schönbuch Ultra 50km Trail trail 50km Hildrizhausen, DEU 18 Oct Skanderborg Ultraløb 12 hours Timed trail 50km Skanderborg, DNK 18 Oct Süwag Urmensch Ultralauf Trail trail 50km Steinheim, DEU 18 Oct Ultramarathon Okumusashi Quintet Trail trail 70km Moroyama, Saitama Pref., JPN 23 Oct Commodore 24 Hour Challenge Trail trail 77km Panama City, FL, USA 23 Oct Hare Mountain 100 - 50 Miles Trail trail 80km Clarksville, AR, USA 23 Oct Hare Mountain 100 - 60 Km Trail trail 60km Clarksville, AR, USA 23 Oct Lommedalen Rundt 100Miles Trail trail 161km / 100mi Lommedalen, NOR 23 Oct Weekend at Burney 12h Timed trail 50km Burney, CA, USA 24 Oct 18^ Ibiza Trail Marathon Trail trail 48km Sant Antoni de Portmany, ESP 24 Oct Alb Marathon Schwäbisch Gmünd Trail trail 50km Schwäbisch Gmünd, DEU 24 Oct Austria Backyard Ultra - Thüringen/Vorarlberg Timed trail 50km Thüringen, AUT 24 Oct B.U.T.10x10 Burgbernheim Ultra Trail Trail trail 100km / 62mi Burgbernheim, DEU 24 Oct B.U.T.5x10 Burgbernheim Ultra Trail Trail trail 50km Burgbernheim, DEU 24 Oct Backyard Sandefjord Timed trail 50km Sandefjord, NOR 24 Oct Bondi to Manly Ultra Trail trail 80km Bondi, NSW, AUS 24 Oct Bridge Burner Ultra Trail trail 50km Canon City, CO, USA 24 Oct Bridge Burner Ultra - 35miles Trail trail 56km Canon City, CO, USA 24 Oct Call of the Wilds Mountain Fest 50km Race Trail trail 50km Waterville, PA, USA 24 Oct Canyonlands 50 Mile Race Trail trail 80km Moab, UT, USA 24 Oct Canyonlands 50 km Race Trail trail 50km Moab, UT, USA 24 Oct Carkeek 12 Hour Timed trail 50km Seattle, WA, USA 24 Oct Carkeek 6 Hour Timed trail 50km Seattle, WA, USA 24 Oct Caspers Trail Races Trail trail 50km San Juan Capistrano, CA, USA 24 Oct Coyote Wall 50km Trail Race Trail trail 55km White Salmon, WA, USA 24 Oct Day of the Dead Running Series Trail trail 50km Las Cruces, NM, USA 24 Oct ECT 50k Ultra Marathon Trail trail 50km St John's, NL, CAN 24 Oct Endless Mile - 12 Hour Race Timed trail 50km Alabaster, AL, USA 24 Oct Endless Mile - 6 Hour Race Timed trail 50km Alabaster, AL, USA 24 Oct Fancy Nonsense 50 km Race Trail trail 50km Willow Springs, IL, USA 24 Oct Fields of Gold Trail trail 50km Marble Falls, TX, USA 24 Oct Firewater 100k Trail Race Trail trail 100km / 62mi Greenback, TN, USA 24 Oct Firewater 50k Trail Race Sunrise Trail trail 50km Greenback, TN, USA 24 Oct Firewater 50k Trail Race Sunset Trail trail 50km Greenback, TN, USA 24 Oct Fonta Flora 50k Trail trail 50km Nebo, NC, USA 24 Oct Gate2Gate Trail Race Trail trail 50km Alachua, FL, USA 24 Oct Georgia Sky to Summit 50k Trail trail 50km Clayton, GA, USA 24 Oct Go For the Gold Run Fest Huntsville Trail trail 50km Huntsville, AL, USA 24 Oct Hixon 50 Trail trail 50km La Crosse, WI, USA 24 Oct Hot Mess Trail Races Trail trail 52km Pittsgrove, NJ, USA 24 Oct Lake Murray 100km Endurance Run Trail trail 100km / 62mi Ardmore, OK, USA 24 Oct Lake Murray 50 km Endurance Run Trail trail 50km Ardmore, OK, USA 24 Oct Liberty Park Endurance 12h Runs Timed trail 50km Salt Lake City, UT, USA 24 Oct Liberty Park Endurance 6h Runs Timed trail 50km Salt Lake City, UT, USA 24 Oct Lommedalen Rundt 100km Trail trail 102km / 63mi Lommedalen, NOR 24 Oct Lommedalen Rundt 114km Trail trail 114km / 71mi Lommedalen, NOR 24 Oct Lommedalen Rundt 57km Trail trail 57km Lommedalen, NOR 24 Oct Lommedalen Rundt 76km Trail trail 76km Lommedalen, NOR 24 Oct Mountain Mama Farms Classic 4h Run Timed trail 50km Summerville, GA, USA 24 Oct Mountain Mama Farms Classic 8h Run Timed trail 50km Summerville, GA, USA 24 Oct New Hope Ultra Trail trail 50km Corydon, IN, USA 24 Oct No Name 5025 - 50 Km Run Trail trail 50km Agoura, CA, USA 24 Oct NorCal Backyard Ultra Mini Timed trail 50km Granite Bay, CA, USA 24 Oct ORRC Autumn Leaves 50 Mile Run Trail trail 80km Champoeg State Park, St. Paul, OR, USA 24 Oct ORRC Autumn Leaves 50 km Run Trail trail 50km Champoeg State Park, St. Paul, OR, USA 24 Oct PB&J Fat Ass 50K Trail trail 50km Prince William Forest, VA, USA 24 Oct Patapsco Valley 50K Trail trail 50km Baltimore, MD, USA 24 Oct Prisoner of War 50 km Ultra Race Trail trail 50km Spartanburg, SC, USA 24 Oct Range of Light Trail Trail trail 50km Bishop, CA, USA 24 Oct SARR Rocky Horror Trail Run Trail trail 50km San Antonio, TX, USA 24 Oct Summit 50/50 50 Mile Race Trail trail 80km Salamanca, NY, USA 24 Oct Summit 50/50 50 km Race Trail trail 50km Salamanca, NY, USA 24 Oct Suttle Lake Trailfest Timed trail 50km Sisters, OR, USA 24 Oct Tentsmuir Forest 8-hour Challenge Timed trail 50km Tentsmuir Forest, GBR 24 Oct The Bad Thing 50km Trail Race Trail trail 50km Goderich, ON, CAN 24 Oct The Door County Fall 50 Trail trail 80km Gills Rock, WI, USA 24 Oct The Heysen 115km Trail Race (also 70km & 50km) Trail trail 115km / 71mi Newland Hill, SA, AUS 24 Oct The New Orleans 50 Mile Ultramarathon Trail trail 80km New Orleans, LA, USA 24 Oct The New Orleans 50 km Ultramarathon Trail trail 50km New Orleans, LA, USA 24 Oct Thriller Lake Timed trail 50km Dacula, GA, USA 24 Oct Trail Run at Sly Park - Fall Trail trail 50km Pollock Pines, CA, USA 24 Oct Triple Lakes Trail Race Trail trail 64km Greensboro, NC, USA 24 Oct Tussey Mountainback 50 Miler Trail trail 80km Boalsburg, PA, USA 24 Oct Tussey Mountainback 50 km Trail trail 50km Boalsburg, PA, USA 24 Oct WXT Ultra Trail trail 50km Hopewell Township, NJ, USA 24 Oct Wildwood Canyon Trail Run Timed trail 50km Yucaipa, CA, USA 24 Oct Womp Romp Trail trail 50km Hingham, MA, USA 24 Oct Yippee-Ki-Yay 50 km Race Trail trail 50km Council Bluffs, IA, USA 25 Oct Ankara 6 Stundenlauf Timed trail 50km Ankara, TUR 25 Oct ISOPOL Super6 Timed trail 50km Veszprem, HUN 25 Oct Jacks 50k Trail Race Trail trail 52km Palm Coast, FL, USA 25 Oct Röntgenlauf Trail trail 63.3km Remscheid, DEU 26 Oct Stone Steps 50K Trail Run Trail trail 50km Cincinnati, OH, USA 30 Oct 7 Kullamannen Sprint Ultra 100 km Trail trail 108km / 67mi Höganäs, SWE 30 Oct 9 Kullamannen Ultra 100 miles Trail trail 173km / 108mi Höganäs, SWE 31 Oct 6 Kullamannen Seventh Seal 50K Trail trail 53km Båstad, SWE 31 Oct Camino De Los Muertos Trail trail 100km / 62mi Lewisville, TX, USA 31 Oct Chicago Lakefront Fall 50 Mile Race Trail trail 80km Chicago, IL, USA 31 Oct Chicago Lakefront Fall 50km Race Trail trail 50km Chicago, IL, USA 31 Oct Colorado 12 Hour Run Timed trail 50km Fort Collins, CO, USA 31 Oct Colorado 6 Hour Run Timed trail 50km Fort Collins, CO, USA 31 Oct Cougar Mountain Trail Run Trail trail 50km Newcastle, WA, USA 31 Oct Fall Back Blast 50km Race Trail trail 50km Eau Claire, WI, USA 31 Oct Fall Back into the Trails 100km Trail trail 100km / 62mi Lagrangeville, NY, USA 31 Oct Fethiye Ultra Marathon Trail trail 50km Fethiye, TUR 31 Oct Halloween Dusk 2 Dawn 12h Timed trail 50km Telegraph Point, NSW, AUS 31 Oct Lage Vuursche Ultra Trail trail 50km Baarn, NLD 31 Oct Running for Children with MDVI Non Stop 12h DayRun Timed trail 50km Beitun District, TWN 31 Oct Running for Children with MDVI Non Stop 6h DayRun Timed trail 50km Beitun District, TWN 31 Oct Running for Children with MDVI Non Stop 6h NoonRun Timed trail 50km Beitun District, TWN 31 Oct The Dark 12 Hours Underground Timed trail 50km Bellevue, AB, CAN 31 Oct The Dark 6 Hours Underground Timed trail 50km Bellevue, AB, CAN 31 Oct Thep Sadet Trail 50km Trail trail 56km Doi Saket, Chiang Mai, THA 31 Oct Ultra Trail Amazonica Trail trail 55km Praia da Ponta Negra, Manaus, AM, BRA

November

1 Nov 8 Hours at the Farm Timed trail 50km Brookfield, CT, USA 1 Nov 800 Heroes - Guosheng Port Lighthouse 102Km Trail trail 102.5km / 64mi Qigu District, TWN 1 Nov 800 Heroes - Guosheng Port Lighthouse 51Km Trail trail 51.7km Qigu District, TWN 1 Nov Autumn Squatch 50km Race Trail trail 50km Lewis Center, OH, USA 1 Nov Fall Back into the Trails 50km Trail trail 50km Lagrangeville, NY, USA 1 Nov Ferris Fifty Trail trail 80km Minden, NV, USA 1 Nov Fire on the Mountain 50k Ultra Marathon Trail trail 53km Flintstone, MD, USA 1 Nov Lake Vista Lunatics Run Timed trail 50km Borden, IN, USA 1 Nov Moonshine Backyard Ultra Timed trail 50km Arnstein, Ontario, CAN 1 Nov Novemberlauf Trail trail 50km Freudenstadt-Grüntal, DEU 5 Nov Grampians Peak Trail 100mi (GPT100) Trail trail 161km / 100mi Horsham, VIC, AUS 6 Nov Grampians Peak Trail 50km (GPT50K) Trail trail 49.5km Horsham, VIC, AUS 6 Nov KUS 12 Hour Ultramarathon Timed trail 50km Wichita, KS, USA 6 Nov KUS 12 Hour Ultramarathon Night Run Timed trail 50km Wichita, KS, USA 6 Nov KUS 6 Hour Ultramarathon Timed trail 50km Wichita, KS, USA 6 Nov KUS 6 Hour Ultramarathon Night Run Timed trail 50km Wichita, KS, USA 6 Nov Mamba 50 Km Trail trail 50km Memphis, TN, USA 7 Nov 10 Sätila Trail 85km Trail trail 85km Sätila, SWE 7 Nov Arrowtown Backyard Ultra Timed trail 50km Arrowtown, NZL 7 Nov Azalea 12 Hour Race Timed trail 50km Palatka, FL, USA 7 Nov Azalea 50 Mile Race Trail trail 80km Palatka, FL, USA 7 Nov Azalea 50 km Race Trail trail 50km Palatka, FL, USA 7 Nov Big Tex Backyard Timed trail 50km Cat Spring, TX, USA 7 Nov Big Texas Ultra Trail trail 100km / 62mi Georgetown, USA 7 Nov Broken Toe 50k Trail trail 50km Waynesville, OH, USA 7 Nov Broken Toe 50k Ruck Trail trail 50km Waynesville, OH, USA 7 Nov Conquer The Castle 100K Trail Race Trail trail 100km / 62mi Willoughby Hills, OH, USA 7 Nov Conquer The Castle 50K Trail Race Trail trail 50km Willoughby Hills, OH, USA 7 Nov Deadman Peaks 53 Mile Trail Run Trail trail 85km Cuba, NM, USA 7 Nov Deadman Peaks 55 km Trail Run Trail trail 55km Cuba, NM, USA 7 Nov Dogwood Canyon Trail Run Trail trail 50km Lampe, MO, USA 7 Nov Glacier Hills 50k Ultra Trail trail 50km Canton, SD, USA 7 Nov Gone Fir A Run 50K Trail trail 50km Spokane, WA, USA 7 Nov Grand Ridge 50 Km Trail Run Trail trail 50km Issaquah, WA, USA 7 Nov Icebox 480 - 4 Hour Run Timed trail 50km River Falls, WI, USA 7 Nov Icebox 480 - 8 Hour Run Timed trail 50km River Falls, WI, USA 7 Nov Kessel Run 40 Mile Ultra Race Trail trail 64km Fruita, CO, USA 7 Nov Kessel Run 50 Mile Ultra Race Trail trail 80km Fruita, CO, USA 7 Nov Kessel Run 50 km Ultra Race Trail trail 50km Fruita, CO, USA 7 Nov Lake Chabot 50 km Trail Run Trail trail 50km Castro Valley, CA, USA 7 Nov Libertys Lost Treasure Trail trail 50km Gutherie, OK, USA 7 Nov Mental Health Ultra Marathon Trail trail 50km Newnan, GA, USA 7 Nov Miner 49er Trail trail 50km Dubuque, IA, USA 7 Nov Miola Madness - Fall Edition Timed trail 50km Paola, KS, USA 7 Nov Mountain Masochist 100km Trail Run Trail trail 100km / 62mi Montebello, VA, USA 7 Nov Mountain Masochist 50 Mile Trail Run Trail trail 80km Montebello, VA, USA 7 Nov Mountain Masochist 50km Trail Run Trail trail 50km Montebello, VA, USA 7 Nov Mountaineer Rumble 50 km Race Trail trail 50km Clover, SC, USA 7 Nov Mt. Tam Trail Run Trail trail 50km Stinson Beach, CA, USA 7 Nov Natchez Trace Trail Run Trail trail 80km Natchez Trace, TN, USA 7 Nov Noland Trail 50 km Race Trail trail 50km Newport News, VA, USA 7 Nov Paleozoic Trail Runs - Silurian Fall III Trail trail 50km Wood Springs, IL, USA 7 Nov Resilient Service Members Classic Trail trail 50km Hookstown, PA, USA 7 Nov Rio Del Lago 50 km Race Trail trail 50km Granite Bay, CA, USA 7 Nov Route 66 UltraRun Crewed Trail trail 225km / 140mi Seligman, AZ, USA 7 Nov Route 66 UltraRun Journey Trail trail 225km / 140mi Seligman, AZ, USA 7 Nov Run the River Ultra 6h Timed trail 50km Petal, MS, USA 7 Nov Run the Rock 50 Km Trail trail 50km Terrebonne, OR, USA 7 Nov Sanders Saunter 50k Trail trail 50km Lawrence, KS, USA 7 Nov Screaming Monkey 50 Miles Race Trail trail 80km Keithville, LA, USA 7 Nov Screaming Monkey 50 km Race Trail trail 50km Keithville, LA, USA 7 Nov Shelli Huether Veterans Day Honor Run Timed trail 50km Brentwood, TN, USA 7 Nov Sollingquerung 50 km Trail trail 50km Bad Karlshafen, DEU 7 Nov Squatch Till You Drop Timed trail 50km Little Rock, AR, USA 7 Nov Stone Cat 100 Km Trail trail 100km / 62mi Ipswich, MA, USA 7 Nov Stone Cat 50 Mile Trail trail 80km Ipswich, MA, USA 7 Nov Stone Mill 50 Mile Run Trail trail 80km Montgomery Village, MD, USA 7 Nov The Beav Trail Race Trail trail 50km Milton, ON, CAN 7 Nov The Hamsterwheel 12 Hour Run Timed trail 50km New Boston, NH, USA 7 Nov The Hamsterwheel 6 Hour Run Timed trail 50km New Boston, NH, USA 7 Nov The Long Run - Fall Back Timed trail 50km Wind Gap, PA, USA 7 Nov Thunder River Trail trail 50km Cascade Locks, OR, USA 7 Nov Trails & Tarmac 12 hour Backyard Ultra Timed trail 50km Crickhowell, GBR 7 Nov Ultra Desafio Do Padre Trail trail 57km Caxias do Sul, BRA 7 Nov Ultramarathon Rund um Werther Trail trail 47km Steinhagen, DEU 7 Nov Wild Florida 50 km Race Trail trail 50km Canttell, FL, USA 7 Nov Willapa Trail Festival 100 Miles Race Trail trail 161km / 100mi Chehalis, WA, USA 7 Nov Willapa Trail Festival 50 Miles Race Trail trail 80km Chehalis, WA, USA 7 Nov Willapa Trail Festival 50km Race Trail trail 50km Chehalis, WA, USA 7 Nov Zhaoqing Dinghu 50 Ultra Trail Trail trail 50km Zhaoqing Cty, CHN 7 Nov tBunk Endurance Challenge 50 Km Night Trail trail 50km La Grange, WI, USA 7 Nov tBunk Endurance Challenge 50 Mile Trail trail 80km La Grange, WI, USA 8 Nov 50 km Herbstwaldlauf - Ultramarathon in Bottrop Trail trail 50km Bottrop, DEU 8 Nov Bold Coast Bash 50km Trail Race Trail trail 50km Cutler, ME, USA 8 Nov Marysville 50km Ultramarathon Trail trail 50km Marysville, VIC, AUS 8 Nov Sri Chinmoy 6-Hour Race - San Diego Timed trail 50km San Diego, CA, USA 8 Nov The Hill Country Trivium Trail trail 50km Marble Falls, TX, USA 8 Nov Trail de Rodrigues 52 km Trail trail 52km Anse Ally, Rodrigues, MRI 8 Nov Trail de Rodrigues 75 km Trail trail 75km Anse Quitor, Rodrigues, MRI 8 Nov UltraSteinhart666 Trail trail 56km Steinfurt, DEU 8 Nov tBunk Endurance Challenge 50 Km Trail trail 50km La Grange, WI, USA 11 Nov 7º Mons Ultra Trail 200mi Trail trail 322km / 200mi Nova Trento, SC, BRA 13 Nov 7º Mons Ultra Trail 100mi Trail trail 161km / 100mi Nova Trento, SC, BRA 13 Nov 7º Mons Ultra Trail 104km Trail trail 104km / 65mi Nova Trento, SC, BRA 14 Nov 1er Topo Athletic Bibracte Ultra-Trail - La Balade de Dumnorix Trail trail 63km Arleuf, FRA 14 Nov Austin Rattler Run 50K Trail trail 50km Smithville, TX, USA 14 Nov Bound for the Hounds 6 Hour Run Timed trail 50km Shortsville, NY, USA 14 Nov Dead Horse 50 Mile Race Trail trail 80km Moab, UT, USA 14 Nov Dead Horse 50 km Race Trail trail 50km Moab, UT, USA 14 Nov EicUt 65 Trail trail 65km Heilbad Heiligenstadt, DEU 14 Nov Lady of the Lake 8 Hour Race Timed trail 50km Blairsville, GA, USA 14 Nov Live Oak Odyssey Timed trail 50km Trabuco Canyon, CA, USA 14 Nov Looking Glass 100 km Trail Race Trail trail 100km / 62mi Pisgah Forest, NC, USA 14 Nov Lula Lake Trail Blazer Trail trail 50km Lookout Mountain, GA, USA 14 Nov McNotagain Fall Trail Runs Trail trail 80km Pekin, IL, USA 14 Nov NCTRaces: 15x Timed trail 50km Solon Springs, WI, USA 14 Nov NYC Trail Mix 50 Km Race Trail trail 50km Staten Island, NY, USA 14 Nov NYC Trail Mix 50 Miles Race Trail trail 80km Staten Island, NY, USA 14 Nov Norris Dam Hard Trail Race 50K Trail trail 50km Lake City, TN, USA 14 Nov Pass Mountain 50 Mile Race Trail trail 80km Mesa, AZ, USA 14 Nov Pass Mountain 50 km Race Trail trail 50km Mesa, AZ, USA 14 Nov RYR Endurance Race Weekend Trail trail 50km Owensboro, KY, USA 14 Nov Red Rock Canyon 50 km Race Trail trail 50km Blue Diamond, NV, USA 14 Nov Rosaryville Veterans Day 50K Trail trail 50km Upper Marlboro, MD, USA 14 Nov RunFellows vorWald Ultra Trail RWUT Trail trail 63km Reichenbach, DEU 14 Nov TARCkey Trot 6-Hour Ultra Timed trail 50km Winchester, MA, USA 14 Nov The Forge Trail Run Festival Trail trail 60km Lemont, IL, USA 14 Nov Wild Hare 50 Mile Race Trail trail 80km Warda, TX, USA 14 Nov Wild Hare 50 km Race Trail trail 50km Warda, TX, USA 14 Nov Woodpecker Six 6 Hour Race Timed trail 50km Central City, IA, USA 15 Nov 6 Stundenlauf Antalya Timed trail 50km Antalya, TUR 15 Nov Georgsmarienhütter 0 - Ultra-Trail Trail trail 48km Osnabrück-Sutthausen, DEU 15 Nov The Rugged INDY Timed trail 50km Spring City, PA, USA 20 Nov Fat Ox 100 Mile Run Trail trail 161km / 100mi Goodyear, AZ, USA 20 Nov Fat Ox 12 Hour Run Timed trail 50km Goodyear, AZ, USA 20 Nov Fat Ox 6 Hour Run Timed trail 50km Goodyear, AZ, USA 21 Nov CT Trailmixers Fall Fling 400 Trail Race Trail trail 50km Southington, CT, USA 21 Nov Chattabrewchee Invitational Trail trail 161km / 100mi Columbus, GA, USA 21 Nov Circle Endurance Event 12 Hour Timed trail 50km Ringgold, GA, USA 21 Nov Circle Endurance Event 6 Hour Timed trail 50km Ringgold, GA, USA 21 Nov Colorado Cold Rush Ultra Trail trail 50km Colorado Springs, CO, USA 21 Nov Colt 45 Mile Trail Run Trail trail 72km Lakeland, FL, USA 21 Nov Colt 45 km Trail Run Trail trail 45km Lakeland, FL, USA 21 Nov Colt 60 Mile Trail Run Trail trail 97km Lakeland, FL, USA 21 Nov Copthorne 50km Trail trail 49km Mickleham, GBR 21 Nov Copthorne 50mi Trail trail 82km Mickleham, GBR 21 Nov Dinosaur Valley Endurance Run 100 Km Trail trail 100km / 62mi Glen Rose, TX, USA 21 Nov Dinosaur Valley Endurance Run 50 Km Trail trail 50km Glen Rose, TX, USA 21 Nov Dizzy Fifties - 50 km Trail Run Trail trail 50km Huntsville, AL, USA 21 Nov Duncan Ridge Trail 50 km Race Trail trail 50km Blairsville, GA, USA 21 Nov Fall Creek 50 Trail trail 80km Spencer, TN, USA 21 Nov Fat Ox 100 Km Run Trail trail 100km / 62mi Goodyear, AZ, USA 21 Nov Fat Ox 24 Hour National Championship Timed trail 50km Goodyear, AZ, USA 21 Nov Fat Ox 50 Km Run Trail trail 50km Goodyear, AZ, USA 21 Nov Hallucination 12 Hour Trail Run Timed trail 50km Charleston, SC, USA 21 Nov Hallucination 6 Hour Trail Run Timed trail 50km Charleston, SC, USA 21 Nov JFK 50 Mile Trail trail 80km Boonsboro, MD, USA 21 Nov Oakwood 24 - 12h Timed trail 50km Raleigh, NC, USA 21 Nov Oakwood 24 - 6h Timed trail 50km Raleigh, NC, USA 21 Nov Pére Malfait Trail Race Trail trail 50km Bastrop, LA, USA 21 Nov Rage Against Riverhead - 12h Timed trail 50km Auckland, NZL 21 Nov Rage Against Riverhead - 24h Timed trail 50km Auckland, NZL 21 Nov Rage Against Riverhead - 8h Timed trail 50km Auckland, NZL 21 Nov The 16 Hour Lock-In Timed trail 50km Carolina Beach, NC, USA 21 Nov Valley of Fire Backcountry（Fire Fest Ultra） Trail trail 50km Logandale, NV, USA 21 Nov WAI2K 100K Ultra Trail trail 100km / 62mi Greytown, NZL 21 Nov WAI2K 50K Ultra Trail trail 50km Greytown, NZL 22 Nov Regal Beagle Ultrarace Trail trail 50km Bath, OH, USA 22 Nov Ultra Trail Chongyi Challenge - 50 km Trail trail 50km Ganzhou City, CHN 28 Nov Bosque Bigfoot Race Trail trail 50km Albuquerque, NM, USA 28 Nov Boundiful 12 Hours Endurance Run Timed trail 50km Hemet, CA, USA 28 Nov Boundiful 6 Hours Endurance Run Timed trail 50km Hemet, CA, USA 28 Nov Caney Fork 50K Ultra Race Trail trail 50km Sparta, TN, USA 28 Nov Colorado River Run Trail trail 50km Lago Vista, TX, USA 28 Nov Derby 50k Ultra Run Trail trail 50km Derby, NC, USA 28 Nov Fröndenberger 6h Lauf Timed trail 50km Fröndenberg, DEU 28 Nov GoodRunnings 12h Dusk to Dawn Timed trail 50km Glenelg North, SA, AUS 28 Nov GoodRunnings 6h Dusk to Dawn Timed trail 50km Glenelg North, SA, AUS 28 Nov Saltatlón Timed trail 50km Salta, ARG 28 Nov Squatchy Leftovers 50km Trail Race Trail trail 50km West Orange, NJ, USA 28 Nov Turkey Burn Ultra Trail trail 50km Clermont, FL, USA 28 Nov UHUT100 Winter - Rhenen Trail trail 50km Leersum, NLD 29 Nov De Warmste Loop - The Warmest Run Timed trail 50km Wingene, BEL 29 Nov Sunset 12 Hour Endurance Challenge Timed trail 50km Benton, AR, USA 29 Nov Sunset 6 Hour Endurance Challenge Timed trail 50km Benton, AR, USA 29 Nov Trail de la Soupe Trail trail 45km La-Roche-en-Ardenne, BEL 29 Nov UHUT100 Winter - Doorn Trail trail 50km Leersum, NLD

December

4 Dec Ollies Ultra 12h Timed trail 50km Chanute, KS, USA 4 Dec Ollies Ultra 6h Timed trail 50km Chanute, KS, USA 5 Dec 800 Heroes - Jinshui Camp Trail 115Km Trail trail 115km / 71mi Fangliao Township, TWN 5 Dec 800 Heroes - Jinshui Camp Trail 50Km Trail trail 49.6km Fangliao Township, TWN 5 Dec Anza Borrego Cuyamaca 50 Mile Run Trail trail 80km Julian, CA, USA 5 Dec Backyard Ultra Piekiełki in the dark Timed trail 50km Piekiełki, POL 5 Dec Bigfoot 50K Trail Race Trail trail 50km Lore City, OH, USA 5 Dec Blood Rock 50 Mile Endurance Race Trail trail 80km Pelham, AL, USA 5 Dec Blood Rock 55 km Race Trail trail 55km Pelham, AL, USA 5 Dec Bremer Bergmarathon mit Höhenmetersammlung Trail trail 51km Bremen, DEU 5 Dec Caloosahatchee Ultra Run Trail trail 50km Alva, FL, USA 5 Dec Cloudland Canyon 50 Mile Race Trail trail 80km Rising Fawn, GA, USA 5 Dec Cloudland Canyon 50 km Race Trail trail 50km Rising Fawn, GA, USA 5 Dec Colossal Vail 50 Km Trail trail 55km Vail, AZ, USA 5 Dec Colossal Vail 50 Mile Trail trail 80km Vail, AZ, USA 5 Dec Devil Dog Ultra 50 km Race Trail trail 50km Triangle, VA, USA 5 Dec Festivus 100 Miler Trail Run Trail trail 161km / 100mi Middleburg, FL, USA 5 Dec Festivus 35 Miler Trail Run Trail trail 56km Middleburg, FL, USA 5 Dec Festivus 50 Miler Trail Run Trail trail 80km Middleburg, FL, USA 5 Dec HAROC (aka Hanging Rock Challenge) Trail trail 50km Danbury, NC, USA 5 Dec Island View - Endurance Run Trail trail 50km Goleta, CA, USA 5 Dec Isle du Bois Trail Run Trail trail 50km Pilot Point, TX, USA 5 Dec Jackson County 50-50 Ultra-marathon - 100km Trail trail 100km / 62mi Brownstown, IN, USA 5 Dec Jackson County 50-50 Ultramarathon - 50 Km Trail trail 50km Brownstown, IN, USA 5 Dec Krampuslauf 9h Timed trail 50km Lyme, NH, USA 5 Dec Lake Norman State Park Trail Race 50km Trail trail 50km Troutman, NC, USA 5 Dec Last Chance 50 Mile Ultra Race Trail trail 80km Springfield, MO, USA 5 Dec Last Chance 50 km Ultra Race Trail trail 50km Springfield, MO, USA 5 Dec Loup Garou 40 Mile Trail Run Trail trail 64km Ville Platte, LA, USA 5 Dec McDowell Mountain Frenzy 50 Mile Trail trail 80km Fountain Hills, AZ, USA 5 Dec McDowell Mountain Frenzy 50 km Trail trail 50km Fountain Hills, AZ, USA 5 Dec Mosaic 50km Trail Run Trail trail 50km Liberty Hill, TX, USA 5 Dec OTHTC High Desert 50K Ultra Trail trail 50km Ridgecrest, CA, USA 5 Dec Perpetual Motion 12 Hour Race Timed trail 50km Grapevine, TX, USA 5 Dec Perpetual Motion 6 Hour Race Timed trail 50km Grapevine, TX, USA 5 Dec Ray Miller 50 Mile Trail Race Trail trail 80km Malibu, CA, USA 5 Dec Ray Miller 50 km Trail Race Trail trail 50km Malibu, CA, USA 5 Dec San Joaquin River Trail 50K Run Trail trail 50km Friant, CA, USA 5 Dec Sawmill 55k Race Trail trail 55km Golden, CO, USA 5 Dec Shakori 40 Mile Running Festival Trail trail 64km Pittsboro, NC, USA 5 Dec TARC Fells Trail Ultra Winter 32 Mile Trail trail 51km Stoneham, MA, USA 5 Dec The Backland Race Timed trail 50km Gordonville, TX, USA 5 Dec The Guvnor Frozen 50 Trail trail 50km Dodgeville, WI, USA 5 Dec The Tennessee Mile 12 Hour Run Timed trail 50km Franklin, TN, USA 5 Dec The Tennessee Mile 6 Hour Run Timed trail 50km Franklin, TN, USA 5 Dec Tower Tag Challenge Timed trail 50km Hamden, CT, USA 5 Dec Ultra Five-O Trail trail 50km Auckland, NZL 6 Dec 6-Stunden-Lauf Paderborn Nikolaus Edition Timed trail 50km Paderborn, DEU 6 Dec New Forest Xmas Trail 50k Trail trail 50km Christchurch, GBR 6 Dec Pine Mountain 40 Miles Trail trail 64km Pine Mountain, GA, USA 6 Dec Shale Trail Run Trail trail 49km Winchburgh, GBR 12 Dec Beast of the East (Monadnock Ultra) 50 Mile Trail trail 80km Kings Mountain, NC, USA 12 Dec Bell Ringer 50k Trail Run Trail trail 50km Burns, TN, USA 12 Dec Cape Fear Hoilday Run Timed trail 50km Lillington, NC, USA 12 Dec Daytona 100 - 50 Km Ultra Trail trail 50km Atlantic Beach, FL, USA 12 Dec MCW The Holmdel Classic Trail trail 50km Holmdel, NJ, USA 12 Dec Magnus Gluteus Maximus 50 km Trail trail 50km Clifton, VA, USA 12 Dec Naughty Hog Trail trail 100km / 62mi Valley View, TX, USA 12 Dec RunFluent Christmas Timed trail 50km Lutz, FL, USA 12 Dec Spiegelberger Räuberweglauf Trail trail 57km Spiegelberg-Vorderbüchelberg, DEU 12 Dec Spirit of Syllamo 100 Mile Trail trail 161km / 100mi Fifty-Six, AR, USA 12 Dec Spirit of Syllamo 38 Mile Trail trail 61km Fifty-Six, AR, USA 12 Dec Texmas Trail Race Trail trail 104km / 65mi Smithville, TX, USA 13 Dec 17h Mel Williams Memorial Seashore (Seashore Nature Trail) Trail trail 50km Virginia Beach, VA, USA 13 Dec Dallas 50 km Race Trail trail 50km Dallas, TX, USA 13 Dec Dirty December Poker Run Timed trail 50km Diego, CA, USA 13 Dec Last Legend Timed trail 50km Greenvale, VIC, AUS 13 Dec Naked Nick 50 km Race Trail trail 50km Leesport, PA, USA 13 Dec Palmetto Bluff Buffalo Run Trail trail 50km Bluffton, SC, USA 13 Dec Race Austin: Holiday Victory Lap Trail trail 50km Austin, TX, USA 13 Dec X-MAS Trail Trail trail 46km Weiskirchen, DEU 14 Dec Tucson 50K Trail trail 50km Oro Valley, AZ, USA 19 Dec Bei-yi Freeway Ultra Marathon Trail trail 55km Sindian District, TWN 19 Dec Hollands Duin Ultra Trail trail 50km Noordwijk, NLD 19 Dec Meerdaalwoud Trail Trail trail 50km Bierbeek, BEL 19 Dec Sleigh It Timed trail 50km Lake Wales, FL, USA 19 Dec Texas Double Saturday Run Trail trail 50km Dallas, TX, USA 20 Dec Texas Double Sun Run Trail trail 50km Dallas, TX, USA 20 Dec Wald(Ultra)Marathon Calw Trail trail 46km Calw-Altburg, DEU 24 Dec Weihnachtsultra Trail trail 45km Darmstadt, DEU 26 Dec Boyers Furnace 40 Mile Race Trail trail 64km Luray, VA, USA 26 Dec Jupiter Ridge Sand Spur 50k Trail trail 50km Jupiter, FL, USA 26 Dec Loop Out the Year Timed trail 50km Lakewood, WA, USA 27 Dec Holiday Five Day 1 Trail trail 50km Winter Park, FL, USA 27 Dec Zhiyin Jiuzhen Ultra Trail Trail trail 50km Wuhan City, CHN 28 Dec Across The Years, 100km Trail trail 100km / 62mi Peoria, AZ, USA 28 Dec Across The Years, 200mi Trail trail 322km / 200mi Peoria, AZ, USA 28 Dec Across the Years, 12h Timed trail 50km Peoria, AZ, USA 28 Dec Across the Years, 6 days Timed trail 50km Peoria, AZ, USA 28 Dec Across the Years, 6h Timed trail 50km Peoria, AZ, USA 28 Dec Grüntal-Winterultra Trail trail 50km Freudenstadt-Grüntal, DEU 28 Dec Holiday Five Day 2 Trail trail 50km Winter Park, FL, USA 29 Dec Holiday Five Day 3 Trail trail 50km Winter Park, FL, USA 30 Dec Holiday Five Day 4 Trail trail 50km Winter Park, FL, USA 30 Dec Moccasin 24 Timed trail 50km Memphis, TN, USA 30 Dec Snowdrop Ultra 55 Hour Race Timed trail 50km Sugar Land, TX, USA 30 Dec Snowdrop Ultra 55 Hour Race - 100km Split Trail trail 100km / 62mi Sugar Land, TX, USA 30 Dec Snowdrop Ultra 55 Hour Race - 100mi Split Trail trail 161km / 100mi Sugar Land, TX, USA 30 Dec Snowdrop Ultra 55 Hour Race - 50km Split Trail trail 50km Sugar Land, TX, USA 30 Dec Snowdrop Ultra 55 Hour Race - 50mi Split Trail trail 80km Sugar Land, TX, USA 31 Dec Across the Years, Last Person Standing Timed trail 50km Peoria, AZ, USA 31 Dec Aussie Alpine Backyard Ultra Timed trail 50km Falls Creek, VIC, AUS 31 Dec Brigittes Nachtlauf in einen glücklichen "Un...Ruhestand" Timed trail 50km Salzgitter-Bad, DEU 31 Dec Holiday Five Day 5 Trail trail 50km Winter Park, FL, USA 31 Dec New Years Eve Rock around the Clock 50km Trail trail 50km Anakie, VIC, AUS 31 Dec New Years One Day 100 Mi Run Trail trail 161km / 100mi San Jose, CA, USA 31 Dec New Years One Day 12 Hour Run Timed trail 50km San Jose, CA, USA 31 Dec New Years One Day 24 Hour Run Timed trail 50km San Jose, CA, USA 31 Dec New Years One Day 6 Hour Run Timed trail 50km San Jose, CA, USA 31 Dec Run Undead Ultra Trail Party Trail trail 161km / 100mi Pelham, AL, USA 31 Dec Thousand Island Lake Off-Road Tour (UTZQ) Trail trail 50km Qianligang, CHN 5 Dec NBGP - North Balaton Grand Prix - Backyard Timed trail 50km Csopak, HUN

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