OCC (Orsières-Champex-Chamonix)
The shortest, fastest UTMB-week race — ~56km / ~3,500m from Orsières (Switzerland) to Chamonix, the accessible entry to the UTMB series. Next-date approximate (UTMB week, late August).
26 August 2027Orsières, Switzerland → Chamonix, France56km
Get your OCC (Orsières-Champex-Chamonix) planThe shortest, fastest UTMB-week race — ~56km / ~3,500m from Orsières (Switzerland) to Chamonix, the accessible entry to the UTMB series. Next-date approximate (UTMB week, late August).
What makes it hard
- Night riding — pacing and kit in the dark are part of the performance
- 3500m of total climbing
- Technical terrain: alpine singletrack, rocky climbs, long technical finish descent, forest
How BEINA trains you for it
BEINA reads the exact demands of OCC (Orsières-Champex-Chamonix) — mountain ultra, 56km, alpine singletrack, rocky climbs, long technical finish descent, forest — and builds your plan around them. Race-day predictions and AI coaching remove the guesswork so you arrive ready.