100mi
Western States 100
161km Distance
5,500m Elevation
10 Grit Score
Elite/Extreme Level
Vertical Intensity 34 D+/km
Moderate undulations. Requires consistent effort across varying grades.
The Aid Station
Course-specific beta from the community
This is a rolling course. Expect fast, runnable sections where rhythm is key.
With mountain terrain, choose a shoe with aggressive lugs (5mm+) for optimal performance.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Course Intelligence
OPENFREE MAP (LIBRE)About
The world's oldest 100-mile trail race, from Squaw Valley to Auburn through the Sierra Nevada.
Highlights
- Oldest 100-miler
- River crossings
- Extreme heat in canyons