OCC
The ultimate challenge for mid-distance ultra-runners, the OCC is the 50K category final for the UTMB World Series.
Distance
61 KM
Elevation Gain
3400 M+
Start Date
Thursday 28th August 2025
Race Start
Orsières - 10:15
Max Allowed Race Time
14 Hours 30 Minutes
MEN : 1st - Jim WALMSLEY // 2nd - Cristian MINOGGIO // 3rd - Andrzej WITEK
WOMEN : 1st - Joyline CHEPNGENO // 2nd - Miao YAO // 3rd - Judith WYDER
A closer look at the course
Dive deep into the heart of the race
50K Final of the UTMB World Series
The OCC is now the annual 50K category final of the UTMB World Series, the ultimate challenge for all mid-distance ultra runners. Access to the OCC is open to all runners with at least one Running Stone and to elites who have qualified directly via the UTMB World Series races.
STRAVA Official Segments
Check out the key sections of the course on Strava! Climbs, descents, and everything in between: get familiar with the race’s iconic segments. Join the Strava Club and share your race with the community. Every effort counts. Every segment tells a story.