Expected August 2027
Distance
Climb
Start Time
Cutoff
Terrain
The OCC UTMB Mont Blanc is a 57km trail race with 3500 meters of positive elevation gain, designed as the ultimate challenge for middle-distance ultra-runners. Starting in Orsières, Switzerland, the course traverses beautiful valleys and alpine passes before finishing in Chamonix, France.
Balme pass with panoramic Mont-Blanc views
Swiss valley landscapes
Finish in Chamonix center
Qualification
Start / Finish
Orsières, Val d'Entremont, Switzerland
Chamonix center, France
Terrain
Route
Expo
Race Day
Recovery
What you get
Chip timing
Finish arch in Chamonix
Race timing
Course marking
On the day
Merchandise
Marshals on course
First aid on course
Other questions
Pre-registration period: 8-19 January 2026 (23:59 CET). Lottery results announced: 22 January 2026 (11:00 CET). Second round confirmation deadline: 12 February 2026 (23:59 CET).
Runners need at least one Running Stone or direct qualification via UTMB World Series races. The OCC is the 50K category final of the UTMB World Series.
Runners have 14 hours 30 minutes to complete the course, with a finish deadline of 22:45.
The event has security and health policies, with first aid available and race regulation governing safety requirements.
Yes, there is a Fan Experience area and spectator information available. Live tracking is available through LiveTrail.
Entry fee
Registration isn't open yet. We'll show pricing when the organiser confirms.Orsières, Switzerland
Expected August 2027
Provisional date, around Aug 26Are you the organiser of OCC - UTMB Mont Blanc - 57K?
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