250km team expedition around the UNESCO Jungfrau-Aletsch World Heritage
Other trail races within 77 miles
A 250km circumnavigation of the UNESCO World Heritage Swiss Alps Jungfrau-Aletsch region, completed in mandatory teams of 2 or 3. The route navigates glaciers, high alpine passes, and remote terrain linking the Bernese Oberland to the Valais and back — crossing the Sefinafurgga, Hohtürli, Lötschenpass, Aletsch Glacier, Fieschergletscher, Goms, Grimselpass, and Rosenlaui in nearly four continuous days of alpine expedition running. Partial self-sufficiency is required between life bases, where teams can eat, rest, and access drop bags.
Recommended for seasoned ultrarunners
Grindelwald, Bern, SwitzerlandJuly 15, 2026

Must complete a 100K race or longer within the qualification window
A UTMB index in the 100K category is required, or at least one 100K Ultra Trail completed since 1 January 2022 (submitted as reference). Finishers under 90 hours qualify for the Western States 100 lottery.

| Location | km | Elevation |
|---|---|---|
Grindelwald Start | 0.0 | 1,031 m |
Stechelberg Aid Station | 22.8 | 863 m |
Kandersteg Aid Station | 56.2 | 1,173 m |
Jeizinen Aid Station | 90.8 | 1,515 m |
Finnen Aid Station | 115.3 | 1,404 m |
Belalp Aid Station | 130.1 | 2,095 m |
Bellwald Aid Station | 170.1 | 1,571 m |
Oberwald Aid Station | 201.2 | 1,373 m |
Guttannen Aid Station | 229.3 | 1,057 m |
Grindelwald Finish | 261.0 | 1,031 m |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Multiple passes exceed 2500m; Hohtürli at 2778m and Lötschenpass at 2690m
Overnight temperatures at high passes can drop well below freezing even in July; mandatory gear includes warm layers
Afternoon thunderstorms are common in the Swiss Alps in July; exposed ridgelines require careful timing
Some high passes may retain snow patches in July; glacier crossings require appropriate footwear
No required gear specified
No recommended gear specified
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