Switzerland's first 100M ultra — a nocturnal alpine odyssey through five high passes
Other trail races within 63 miles
Switzerland's oldest ultra trail sends runners on a full alpine loop from Verbier through the Bagnes, Entremont, and Ferret valleys, touching the Italian border at the legendary Grand St-Bernard pass with its historic hospice. Starting at 10 p.m., the route climbs immediately above Verbier, traverses multiple high passes well above 2500 m, skirts glaciers, and crosses a 190-meter suspension bridge near the Panossière glacier with the 4314 m Grand Combin looming overhead. The final challenge is a 1200 m wall back up to the Verbier finish. High-altitude, technical, nocturnal, and relentless — this is the defining race of the Swiss ultra scene.
Recommended for seasoned ultrarunners
Verbier, VS, SwitzerlandJuly 10, 2026


| Location | km | Elevation |
|---|---|---|
Start Start | 0.0 | 1,488 m |
Finish Finish | 132.2 | 1,487 m |
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Course runs continuously above 2000 m through multiple passes; several sections exceed 2500 m
Afternoon thunderstorms common in the Swiss Alps in July; exposed ridge sections between La Fouly and Grand St-Bernard are particularly vulnerable
Temperatures can drop below freezing above 2500 m, especially overnight on the high passes. Mandatory gear requirements reflect this.
No required gear specified
No recommended gear specified
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