Route des Grandes Alpes – dag 3: Bourg-Saint-Maurice en de Col de l'Iseran takes place on Mon, Sep 7, 2026 in Bourg-Saint-Maurice, France. The main route is 79.8 km.
- Date
- Mon, Sep 7, 2026
- Start
- Bourg-Saint-Maurice 🇫🇷
- Distance
- 79.8 km
- Climbing
- 2,057 m
- Level
- Open to all
A cycling stage of the Route des Grandes Alpes beginning in Bourg-Saint-Maurice and featuring the Col de l’Iseran, the highest paved pass in Europe.
What this race demands
This 79.8 km mountain stage requires sustained climbing capacity over 2057 meters of elevation gain, highlighted by the Col de l'Iseran.
Climbing volume
Accumulating 2057 meters of elevation over a relatively short distance of 79.8 km means athletes will spend a high proportion of the day ascending steep mountain passes.
High altitude
Tackling the Col de l'Iseran, the highest paved pass in Europe, exposes riders to significant altitude demands that can reduce power output.
Given the mountain duration typically exceeding 2.5 hours for most participants, athletes should target 60 to 90 grams of carbohydrates per hour to maintain energy output.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
4:10–5:00
Peak-week training
6–8 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
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Organising this race?