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The HOKA UTMB Mont-Blanc is the world’s most prestigious trail running race, featuring a 171km circuit around Europe’s highest peak.
Course Highlights
The UTMB course is a legendary 171km loop around the Mont-Blanc massif, crossing through France, Italy, and Switzerland. Starting in Chamonix, runners tackle approximately 10,000 meters of positive elevation gain. Key landmarks include the steep ascent of Col du Bonhomme, the technical Grand Col Ferret, and the breathtaking views from Lac Combal. The terrain varies from lush alpine meadows to rocky, high-altitude passes. After a final descent from La Flégère, the race concludes with a triumphant finish through the crowded, cheering streets of Chamonix’s town center.
Why Runners Love It
UTMB is the spiritual home of trail running, often described as the “Tour de France of the mountains.” Its prestige stems from its sheer difficulty, the stunning beauty of the Alps, and a rigorous qualification system that ensures only the world’s best athletes and dedicated amateurs take the start. The atmosphere in Chamonix during race week is electric, with thousands of supporters lining the streets to cheer every finisher. It is a true test of human endurance and spirit, making it the most coveted title in the sport.
Race Details
- Location: Chamonix-Mont-Blanc, France
- Distances: UTMB (171km), CCC (101km), OCC (56km), TDS (145km), PTL (~300km), MCC (40km), ETC (15km), YCC (Junior races)
- Next Race Date: 2026-08-28
- Start Time: 17:45
Race Weekend Tips
Arrive at least three days early to acclimate to the altitude and soak in the vibrant Chamonix atmosphere. The Ultra-Trail Village expo is a must-visit for gear enthusiasts. Accommodations in Chamonix fill up a year in advance, so consider nearby towns like Les Houches, connected by efficient shuttle buses. Prepare for unpredictable alpine weather; mandatory gear is strictly enforced. Use the ‘LiveTrail’ app to track runners and plan travel between support zones via the organized supporter shuttles.
History & Charity
Founded in 2003 by Catherine and Michel Poletti, UTMB has grown from 700 participants to a global phenomenon. It serves as the finale for the UTMB World Series, attracting over 10,000 runners annually across its various events. The race maintains a strong focus on solidarity through its “Charity Bibs” program, which supports 15 selected associations including UTMB Cares, Casa Alianza Suisse, and Petit Cœur de Beurre. These initiatives fund projects in health, inclusion, and environmental protection within the Mont-Blanc region and beyond.
Chamonix-Mont-Blanc, Auvergne-Rhône-Alpes 74400 France
The HOKA UTMB Mont-Blanc is the world’s most prestigious trail running race, featuring a 171km circuit around Europe’s highest peak.
Course Highlights
The UTMB course is a legendary 171km loop around the Mont-Blanc massif, crossing through France, Italy, and Switzerland. Starting in Chamonix, runners tackle approximately 10,000 meters of positive elevation gain. Key landmarks include the steep ascent of Col du Bonhomme, the technical Grand Col Ferret, and the breathtaking views from Lac Combal. The terrain varies from lush alpine meadows to rocky, high-altitude passes. After a final descent from La Flégère, the race concludes with a triumphant finish through the crowded, cheering streets of Chamonix’s town center.
Why Runners Love It
UTMB is the spiritual home of trail running, often described as the “Tour de France of the mountains.” Its prestige stems from its sheer difficulty, the stunning beauty of the Alps, and a rigorous qualification system that ensures only the world’s best athletes and dedicated amateurs take the start. The atmosphere in Chamonix during race week is electric, with thousands of supporters lining the streets to cheer every finisher. It is a true test of human endurance and spirit, making it the most coveted title in the sport.
Race Details
- Location: Chamonix-Mont-Blanc, France
- Distances: UTMB (171km), CCC (101km), OCC (56km), TDS (145km), PTL (~300km), MCC (40km), ETC (15km), YCC (Junior races)
- Next Race Date: 2026-08-28
- Start Time: 17:45
Race Weekend Tips
Arrive at least three days early to acclimate to the altitude and soak in the vibrant Chamonix atmosphere. The Ultra-Trail Village expo is a must-visit for gear enthusiasts. Accommodations in Chamonix fill up a year in advance, so consider nearby towns like Les Houches, connected by efficient shuttle buses. Prepare for unpredictable alpine weather; mandatory gear is strictly enforced. Use the ‘LiveTrail’ app to track runners and plan travel between support zones via the organized supporter shuttles.
History & Charity
Founded in 2003 by Catherine and Michel Poletti, UTMB has grown from 700 participants to a global phenomenon. It serves as the finale for the UTMB World Series, attracting over 10,000 runners annually across its various events. The race maintains a strong focus on solidarity through its “Charity Bibs” program, which supports 15 selected associations including UTMB Cares, Casa Alianza Suisse, and Petit Cœur de Beurre. These initiatives fund projects in health, inclusion, and environmental protection within the Mont-Blanc region and beyond.