Chamonix Mountain Running Festival

From May 29 to 31, 2026, the Chamonix Mountain Running Festival returns for a special edition in the heart of the Mont Blanc Valley. Over the course of three days, trail running enthusiasts, endurance runners, athletes, and mountain lovers will come together for a program featuring trail runs, masterclasses, conferences, and inspiring talks.

The festival is based at PlanB Chamonix, the event’s true base camp, offering a friendly, international atmosphere focused on sharing.

On the program:
– Trail runs and single tracks in the heart of the Mont Blanc region
– Masterclasses and workshops on performance, training, and injury prevention
– Presentations by international speakers and professional athletes
– Opportunities to connect, meet new people, and enjoy social evenings

The event is organized by Chloë Lanthier, the festival’s founder and director, a multi-sport athlete, sports science specialist, and renowned author in the world of trail running and endurance sports.

Much more than just a sporting event, the Chamonix Mountain Running Festival celebrates the trail running community in a welcoming, friendly, and inspiring atmosphere.

For one weekend, PlanB Chamonix becomes a gathering place for mountain enthusiasts from all over the world.