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Fjällräven Classic Ultra Training Plan

20 weeks 100k arctic

A 20-week arctic training plan for the Fjällräven Classic Ultra (100km). Builds to 130km weekly volume with cold-weather and terrain-specific workouts.

Week 1

base 120 km
Mon Easy 5 km
Tue Tempo 6 km
Wed Rest 0
Thu Long Run 10 km
Fri Hills 8 km
Sat Speed 5 km
Sun Easy 10 km

Week 2

build 130 km
Mon Tempo 7 km
Tue Rest 0
Wed Easy 6 km
Thu Long Run 12 km
Fri Hills 9 km
Sat Speed 6 km
Sun Cross Train 8 km

Week 17

base 80 km
Mon Rest 0
Tue Easy 10 km
Wed Tempo 12 km
Thu Rest 0
Fri Easy 10 km
Sat Hills 10 km
Sun Cross Train 0