Date
Thu, 26 Aug 2027
Venue
Orsières, Switzerland → Chamonix, France
Countdown
August
Distance
56km
Total climb
3,500m
The shortest race of UTMB finals week, and the way in. 56km from Orsières in Switzerland to the iconic Chamonix arch, with a lower qualification bar than the longer races.
Create a free training plan for the OCC (Orsières-Champex-Chamonix)
7-day free trial, no card required
The course
The route
A 56km point-to-point from Orsières over Champex-Lac, Bovine, Catogne and La Flégère, climbing and descending roughly 3,500m before the finish under the Chamonix arch.
Weather
Late-August, Orsières
18°CTypical high
7°CTypical low
-1°CColdest in 20 years
40%Days with rain
Highs around 18°C and lows around 7°C, but it has dropped to -1°C. Rain on 40% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
Training
Training for the OCC (Orsières-Champex-Chamonix)
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icu56km that races hard
Typical sessions
Roughly 3,500m of climbing and equal descent packed into a single half-day
A sustained opening climb from the gun in a fast, deep field that tempts you to overcook it
The long technical La Flégère descent to Chamonix that shreds under-trained quads
Consistent fuelling at 60 to 90g of carbs per hour, with no excuse in the shorter distance
What your weeks look like
Typical sessions
Long hilly runs building toward a 4 to 6 hour day in the hills with full fuelling rehearsal
Big-vert days targeting 1,000 to 2,000m of climbing for economy and descent load
Downhill repeats and a long descent run when tired to armour your quads
Hilly tempo and threshold on undulating trail to keep genuine running speed
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
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Get your OCC (Orsières-Champex-Chamonix) plan.
7-day free trial, no card required.
