Registration for the 10km, Vertical KM, Young Race Marathon and Mini Cross are now open!

From June 26 to 29, 2025, Chamonix welcomes you for an unforgettable experience in the heart of the mountains. Whether you're a trail expert or looking for your first challenge, there's sure to be a race for you! Join us for intense emotions at the Mont-Blanc Marathon! 🏔️

I register!

You can now register for one or more races not subject to the draw, until there is no more bib available. Don't wait, bib numbers are limited!

📍 10km du Mont-Blanc: 2,000 bibs (including 800 reserved for people coming by train or bus)

📍 Vertical KM: 700 bibs (including 280 reserved for people coming by train or bus).

📍 Young Race Marathon : 300 bibs

📍 Mini-Cross: 1,000 bibs