A triple-crown qualifier through the heart of the Swiss Alps
Other trail races within 77 miles
A 159-kilometer loop through the Oberwallis Alps that demands every ounce of grit a runner possesses. With 10,150 meters of vertical gain — equivalent to climbing Everest from sea level — the course traverses remote mountain passes, crosses three dramatic suspension bridges over deep gorges, and runs beside the UNESCO-listed Aletsch Glacier, the longest glacier in the Alps. Starting Friday morning and finishing Sunday, racers run through two nights across high-alpine terrain with 16 aid stations. Every finisher earns a qualifier for both Western States 100 and Hardrock 100 as well as preferred qualifier status for Badwater 135.
Recommended for seasoned ultrarunners
Fiesch, VS, SwitzerlandAugust 07, 2026
| Location | km | Elevation |
|---|---|---|
Start Fiesch Start | 0.0 | 1,067 m |
Kühboden Aid Station | 7.0 | 2,215 m |
Riederfurka Aid Station | 15.6 | 2,066 m |
Belalp Aid Station | 23.7 | 2,131 m |
Belalp Aid Station | 30.7 | 2,132 m |
Riederfurka Aid Station | 41.1 | 2,021 m |
Gletscherstube Aid Station | 52.7 | 2,362 m |
Bellwald Aid Station | 61.2 | 1,572 m |
Reckingen Aid Station | 74.8 | 1,350 m |
Blitzingen Aid Station | 80.5 | 1,255 m |
Chäserstatt Aid Station | 88.3 | 1,767 m |
Binn Aid Station | 102.0 | 1,408 m |
Breithorn Aid Station | 110.5 | 2,430 m |
Rosswald Aid Station | 119.1 | 2,106 m |
Breithorn Aid Station | 131.9 | 2,429 m |
Grengiols Aid Station | 143.1 | 1,085 m |
Mühlebach Aid Station | 151.5 | 1,200 m |
Finish Fiesch Finish | 159.4 | 1,067 m |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Dogs allowed at aid stations under control; not permitted on course.
August in the Oberwallis Alps brings daytime highs of 10–26°C (50–80°F) at valley elevations, but conditions change fast. Above treeline, wind chill can push temperatures near freezing even in summer, and afternoon thunderstorms are common. The 2017 edition was canceled 12 hours in due to a complete whiteout storm that began as light rain at the start. Mandatory gear is strictly enforced and essential.
Course reaches 2,926m at Eggishorn and spends extended time above 2,000m; altitude-related fatigue is a significant factor
Nighttime wind chill can drop near freezing above treeline even in August; the 2017 race experienced a total whiteout snowstorm 10 hours after a mild start
Alpine thunderstorms develop rapidly in summer afternoons on exposed ridgelines
Conditions can shift from hot sun (26°C / 80°F) to near-freezing storm in a matter of hours — mandatory gear list is strictly enforced
No recommended gear specified
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