UTMB Mont-Blanc 2026

Chamonix, France, 24 August 2026

UTMB is the classic full loop around Mont Blanc, starting and finishing in Chamonix, France. The course crosses France, Italy, and Switzerland and passes Les Houches, Saint-Gervais, Les Contamines, Les Chapieux, Lac Combal, Courmayeur, Arnouvaz, La Fouly, Champex-Lac, Trient, Vallorcine, and La Flégère before returning to Chamonix.

8 distances from 38 to 293 km, up to 24,208 m of climb.

Distances

PTL: 293 km, 24208 m of climb, highest point 3202 m, 24 August 2026.
MCC: 38 km, 2232 m of climb, highest point 2235 m, 24 August 2026.
TDS: 148 km, 8525 m of climb, highest point 2595 m, 24 August 2026.
TDS Updated Route: 152 km, 9052 m of climb, highest point 2597 m, 24 August 2026.
OCC: 60 km, 3312 m of climb, highest point 2300 m, 27 August 2026.
CCC: 100 km, 5721 m of climb, highest point 2570 m, 28 August 2026.
UTMB: 173 km, 9755 m of climb, highest point 2534 m, 28 August 2026.
UTMB Updated Route: 174 km, 10197 m of climb, highest point 2571 m, 28 August 2026.
UTMB is the classic full loop around Mont Blanc, starting and finishing in Chamonix, France. The course crosses France, Italy, and Switzerland and passes Les Houches, Saint-Gervais, Les Contamines, Les Chapieux, Lac Combal, Courmayeur, Arnouvaz, La Fouly, Champex-Lac, Trient, Vallorcine, and La Flégère before returning to Chamonix.