Mont-Blanc Marathon
From June 25 to June 28, 2026
The Mont-Blanc Marathon is a trail running event organized by 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.
All events for the 2026 edition are fully booked, with the exception of the Mini-Cross.
See you in Chamonix from June 25 to 28, 2026 for another edition of the Mont-Blanc Marathon!
3 days of LIVE on YOUTUBE to experience the races up close to the action:
News
Program
Trail Camp
Place du Mont-Blanc - Chamonix
- Thursday, June 25, 2026
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 26 and Saturday June 27, 2026
9:00 am - 7:00 pm: Trail Camp - Salon du Marathon du Mont-Blanc
9:00 am - 9:00 pm: Race number collection (EMC2 room) - by appointment.
Friday June 26, 2026
90 km of Mont-Blanc
Place du Triangle de l'Amitié - Chamonix
- 04:45: Start of the 90km du Mont-Blanc
- 2:30 pm : 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 27, 2026
23km / 10km / Mini-Cross / The Young Race / Star duo
Paragliding area - Chamonix
- 08:00: Start of the 23km Mont-Blanc
- 10:30 am : Start of the Mont-Blanc 10km
- 14h00 : Mini-Cross start - 800m
- 2:15pm: Mini-Cross - 2km start
- 2:45 pm: Mini-Cross - 3km start
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: 90km, 10km and 23km Mont-Blanc prize-giving ceremony
- 4:00 pm : First finish of The Young Race
- 6:00 pm: Elite presentation followed by autograph session
- 7:30pm: Start of the Star Duo
- 7:45pm: The Young Race evening (prize-giving ceremony, banquet, DJ, entertainment...)
- 9:45pm : First Star Duo arrivals
Sunday, June 28, 2026
Mont-Blanc 42km
Place du Triangle de l'Amitié - Chamonix
- 6:45 am : Start of the elite women's 42km Mont-Blanc race
- 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 2026