643km around the entire Valais Alps — one of the longest mountain races on earth
Other trail races within 64 miles
The SwissPeaks Odyssey is one of the longest mountain races in the world — a 643km loop through the entire Valais Alps from Lake Geneva, linking glaciers, ancient alpine passes, and historic mountain villages in a single continuous journey. Starting and finishing at Le Bouveret, runners navigate 43,800 meters of elevation gain across terrain ranging from lakeshore to high alpine glaciers, with five life base camps providing hot meals, beds, and accommodation across the multi-day route. Entry is restricted to 100 athletes selected by committee based on their résumé of ultra distances.
Recommended for seasoned ultrarunners
Le Bouveret, VS, SwitzerlandAugust 25, 2026
Must complete an approved qualifier event within the qualification window
Find a qualifying raceRunners selected by committee based on CV. Must be a SwissPeaks 360/Legend finisher and/or have completed a race of approximately 300 km.
| Location | km | Elevation |
|---|---|---|
Start Start | 0.0 | 373 m |
Finish Finish | 577.2 | 373 m |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Course crosses multiple passes above 2,500m and spends extended time in high alpine terrain
Summer afternoon thunderstorms common on exposed ridgelines throughout August–September
Rapidly changing alpine weather across 12+ days — from glacier cold at night to valley heat by day
No required gear specified
No recommended gear specified
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