Marathon du Mont-Blanc 2025

Experience the Marathon du Mont Blanc in Chamonix

Every June, the picturesque town of Chamonix transforms into a hub for trail running enthusiasts from around the globe, hosting the renowned Marathon du Mont Blanc. This multi-day event offers a range of races, including 10km, 23km, 42km, and the formidable 90km ultra-marathon, catering to runners of all levels.

Participants traverse challenging alpine terrains, navigating steep ascents and descents, all while being rewarded with panoramic views of the Mont Blanc massif. The event is not only a test of endurance but also a celebration of mountain sports, with festivities and activities for spectators and families.

For detailed information on race schedules, registration, live tracking and more, visit the official Marathon du Mont Blanc website.

If you’re keen to discover more about events and happenings in Chamonix, check out our News and Events section. Additionally, for comprehensive insights into the region, including attractions, accommodations, and activities, explore our Chamonix Guide.

Race Categories:

• 10km du Mont Blanc: A great introduction to trail running.
• 23km du Mont Blanc: Offers a mix of challenging terrains and scenic views.
• 42km du Mont Blanc: The classic marathon distance with significant elevation gain.
• 90km du Mont Blanc: An ultra-marathon for seasoned trail runners seeking the ultimate challenge.

Whether you’re a participant or a spectator, the Marathon du Mont Blanc promises an exhilarating experience set against the backdrop of the majestic Mont Blanc Massif.