DateExpected
Late June 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Chamonix-Mont-Blanc, Haute-Savoie, France
Chamonix-Mont-Blanc, Haute-Savoie
Countdown
June
A point-to-point run from the paraglider launch to Planpraz. It climbs a lot (1,680 m) and drops only 870 m, so it's mostly uphill.
Key facts
01Six-hour maximum
02Starts at Aire des Parapentas, finishes at Planpraz
03Six start waves
Create a free training plan for the Marathon du Mont-Blanc 23 km
7-day free trial, no card required
The course
The route
Chamonix-Mont-Blanc
Distance23km
Total climb1,680m
StartElevation
0 kmDrag map to rotate23.6 km
Weather
Late-June, Chamonix-Mont-Blanc
18°CTypical high
8°CTypical low
1°CColdest in 20 years
51%Days with rain
Highs around 18°C and lows around 8°C, but it has dropped to 1°C. Rain on 51% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Oria LIACI02:26:219.4 km/h
02Tiphaine BAZILE02:27:439.3 km/h
03Kirsty Skye DICKSON02:32:119.1 km/h
720
Women finishers
4:47:07
Median time
4.8 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserClub des Sports de Chamonix
Websitemarathonmontblanc.fr
Instagram@marathondumontblanc
Running since1979
Training
Training for the Marathon du Mont-Blanc 23 km
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.icuWhat a Marathon du Mont-Blanc 23 km plan targets
Typical sessions
23 km with 1,680 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Hill reps and vert to prepare the climbs and descents
Back-to-back weekend runs for fatigue resistance
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
Entries open now
Get your Marathon du Mont-Blanc 23 km plan.
7-day free trial, no card required.
Other races at Marathon du Mont-Blanc
More events in June in France
Ultr'ArverneExpected Early June 2027 · Ambert→La Chaussée des GéantsSat, 5 Jun 2027 · Thueyts village→La Route de Bourgogne avec Claudio ChiappucciSat, 5 Jun 2027 · Arnay-le-Duc→La Transju’TrailsSat, 5 Jun 2027 · Les Rousses→La Traversée des DentellesSat, 5 Jun 2027 · Gigondas→Trail du PoulduExpected Early June 2027 · Clohars-Carnoët→
