Ultra-Trail du Mont-Blanc: 171km circumnavigation of the Mont Blanc massif traversing France, Italy and Switzerland. The most prestigious ultra trail race in the world.
UTMB Mont-Blanc 2026 features an elite field rated 98/100, with Courtney Dauwalter 🇺🇸 emerging as the clear frontrunner at 42.4% win probability. Jim Walmsley trails at 22.1% and will need a tactical masterclass to contend.
The primary battle is between Courtney Dauwalter and Jim Walmsley, separated by just 20.3 percentage points. The USA 🇺🇸 has 2 athletes in the top 3, adding tactical depth to their campaign. Kilian Jornet 🇪🇸 at 17.4% is the dark horse — capable of disrupting if the leaders neutralize each other.
Cool conditions (5-18C) are favorable for fast times. Variable mountain weather skies should allow athletes to push the pace early. Watch for Moderate impacting the exposed sections of the course.
Courtney Dauwalter to win. Early projection — form and fitness closer to race day will refine this call.
Course record: 20:36:15 / 22:17:34. Chamonix, France (via Italy & Switzerland) hosts this 171 km event.