A WS100-qualifying night loop through the Swiss Alps' highest terrain
Other trail races within 70 miles
A 100-kilometer alpine loop with 6,250 meters of elevation gain, starting Friday evening and running through the night into Saturday. Runners cross two iconic suspension bridges — the 160m Aspi-Titter and 280m Mühlebach-Fürgangen — and traverse ridgelines above the UNESCO-listed Aletsch Glacier with 10 fully stocked aid stations. Finishing in 22 hours or less earns an official Western States 100 qualifier.
Experienced ultrarunners
Fiesch, VS, SwitzerlandAugust 07, 2026
Swiss Alps 100 100KM is a loop trail race in Fiesch, VS, Switzerland, held on August 07, 2026. The course covers 100.8 km, climbs 6,250 m, and has a 27h cutoff.
| Location | km | Elevation | Cutoff | Crew | Pacers | Drop bags |
|---|---|---|---|---|---|---|
Start Fiesch Start | 0.0 | 0 m | 5:30 PM | Crew | ||
Kühboden Aid Station | 7.0 | 2,218 m | 2h30m8:00 PM | Crew | ||
Gletscherstube Aid Station | 15.6 | 2,364 m | 5h10:30 PM | |||
Bellwald Aid Station | 24.1 | 1,579 m | 7h30m1:00 AM +1 | Crew | ||
Reckingen Aid Station | 37.7 | 1,356 m | 10h3:30 AM +1 | Crew | Pacers | |
Blitzingen Aid Station | 43.4 | 1,254 m | 11h4:30 AM +1 | Crew | Pacers | |
Chäserstatt Aid Station | 51.2 | 1,770 m | 14h7:30 AM +1 | Crew | Pacers | |
Binn Aid Station | 64.9 | 1,445 m | 17h30m11:00 AM +1 | Crew | Pacers | Drop Bags |
Breithorn Aid Station | 73.4 | 2,427 m | 20h30m2:00 PM +1 | |||
Grengiols Aid Station | 84.6 | 1,086 m | 22h30m4:00 PM +1 | |||
Mühlebach Aid Station | 92.9 | 1,200 m | 24h30m6:00 PM +1 | Crew | Pacers | |
Finish Fiesch Finish | 100.8 | 1,067 m | 27h8:30 PM +1 | Crew | Drop Bags |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Significant time above 2,000m; exposed sections up to 2,500m
Night temperatures above treeline can drop near freezing in August
Alpine afternoon thunderstorms common on exposed ridgelines
No recommended gear specified
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