Mont-Blanc Marathon
From June 26 to June 29, 2025
The Mont-Blanc Marathon is a trail running event organized by the Club des Sports de Chamonix, a non-profit association founded in 1905. Every year, 10,000 runners take part in one of the 8 races organized on the trails around Chamonix, in the Mont Blanc massif.
Currently, places are only available for the Young Race and the Mini Cross.
The other races for the 2025 edition are now fully booked and there is no waiting list.
REGISTRATION YRM / MINI-CROSS RACE REGULATIONS
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News
Program
Thursday 26, Friday 27 and Saturday 28 June 2025
Place du Mont-Blanc - Chamonix
9:30am - 7:00pm: Trail Camp - Salon du Marathon du Mont-Blanc
9:00 am - 9:00 pm: Race number collection (salle EMC2) - by appointment.
Friday, June 27, 2025
90 km of Mont-Blanc
Place du Triangle de l'Amitié - Chamonix
- 04:00: Start of the 90km du Mont-Blanc
- 14:30 : First finishers of the 90km du Mont-Blanc
KM Vertical du Mont-Blanc
Place du Triangle de l'Amitié - Chamonix
- 4:00 pm : Start of the KM Vertical
- 9:00 pm: KM Vertical prize-giving ceremony
Planpraz
- 5:00 pm: First finishers of the KM Vertical
Saturday, June 28, 2025
23km / 10km / Mini-Cross / The Young Race / Star duo
Paragliding area - Chamonix
- 08:00: Start of the Mont-Blanc 23km
- 10:30 am : Start of the Mont-Blanc 10km
- 11:10am: First finishers of the 10km
- 14h00 : Mini-Cross start - 800m
- 2:15pm: Mini-Cross start - 2km
- 2:45 pm: Mini-Cross start - 3km
Planpraz - Chamonix
- 10:00 am: First finishers of the 23km
Place du Triangle de l'Amitié - Chamonix
- 3:00 pm: Start of The Young Race
- 3:05pm: Mont-Blanc 90km, 10km and 23km prize-giving ceremony
- 4:00 pm : First finishers of The Young Race
- 5:00 pm: Mini Cross and Young Race Marathon prize-giving ceremony
- 6:00 pm: Elite presentation followed by autograph session
- 7:30pm: Start of the Star Duo
- 9:45pm : First Star Duo arrivals
Sunday, June 29, 2025
Mont-Blanc 42km
Place du Triangle de l'Amitié - Chamonix
- 6:45 am : Start of the elite women's 42km du Mont-Blanc
- 7:15 am: Start of the elite men's 42km du Mont-Blanc, followed by non-elite runners
- 10:45am: First finishers of the 42km
- 4:50pm: Presentation of Club des Sports de Chamonix solidarity bibs
- 5:00 pm : Duo étoilé and 42km du Mont-Blanc prize-giving ceremony
Races
Relive the 2024 event on video
Registration for The Young Race and Mini Cross 2025