Blandine L'Hirondel won the 2026 UTMB Mont-Blanc in 21:54:49. It is the fastest time any woman has ever run the race. She became only the third person and second woman in history to complete the full set of UTMB Finals victories.
The fastest clock, a suspended record
Her time sliced under 22 hours on a course rerouted after a two-hour storm delay. Organisers shifted the route away from the exposed Pyramides Calcaires section in Italy. Because of those changes, the run will not stand as an official course record, yet it remains the quickest women's performance the race has produced.
How the race was won
L'Hirondel took an early lead at Saint-Gervais before Rachel Entrekin and Sabrina Bartholomew briefly pushed the pace. At Les Contamines, Bartholomew led. By Les Chapieux at 52 kilometres, L'Hirondel had reclaimed a one-minute advantage.
The race turned decisively in the dark, high section toward Courmayeur. L'Hirondel and Entrekin arrived at La Combal nearly together. Then, on the climb past the Italian halfway point, she stretched the gap to nearly five minutes.
By the Grand Col Ferret, the margin had ballooned to 15 minutes. It doubled again by Champex-Lac. She descended toward Chamonix nursing a heavy fall and a limp, yet crossed the line 21 minutes clear of Entrekin.
One athlete, three crowns
Her victory completes an ultra-trail collection only Ruth Croft and Xavier Thévenard had assembled before her. L'Hirondel had barely competed since injuring her leg at Transvulcania in May. Her stated goal had been simply to reach the start line healthy.
A decade after Caroline Chaverot's 2016 win, a French woman again stood alone at the arch in Chamonix. The triple crown was finished. The fastest women's time on the mountain belonged to her.
