Ultra-Trail du Mont-Blanc 2025

UTMB 2025: Epic Ultra-Trail Adventure in the Heart of the Alps
The highly anticipated Ultra-Trail du Mont Blanc (UTMB) returns to Chamonix from 25 to 31 August 2025. Recognised globally as the pinnacle of trail running, this extraordinary event attracts thousands of athletes and spectators, turning Chamonix into the epicentre of alpine endurance running.
Participants face an awe-inspiring 171km route that circles Mont Blanc, crossing challenging trails and rugged landscapes through France, Italy, and Switzerland. Athletes encounter elevations surpassing 10,000 metres, offering both a spectacular visual backdrop and the ultimate physical challenge. The UTMB isn’t just a race; it’s a celebration of human endurance, with the event attracting elite athletes and passionate amateurs alike. Feel the goosebumps at the epic start and finish of the UTMB where Chamonix will be buzzing with energy, support, and celebration throughout the race week.
The entire week is packed with festivities, including shorter races, family events, and opportunities to meet trail running legends. Whether you’re here to compete, cheer, or soak up the electric atmosphere, Chamonix promises an unforgettable experience.
To explore the full programme, race details, or spectator information, visit the official UTMB website.
If you’d like to discover more about what’s happening in Chamonix throughout the year, check out our News and Events page. To get the most from your visit, explore our comprehensive Chamonix Guide.
Want to travel to the UTMB stress-free and in comfort for the ultimate experience? Book your transfer with Mountain Drop-offs now! For more information on our various transfer options available, click here.