The Ultra-Trail du Mont-Blanc (UTMB) isn't just one thing. It's the Spandex Superbowl, wrapped in Gore-Tex Mardi Gras with a dash of Chafing World Cup. It's a weeklong festival of mountain running ...

During an early morning run in Chamonix, France, on Monday, the town was surprisingly quiet. There were a few trail runners jogging casually along the Arve River path as the sun began to light up the ...

UTMB, or the Ultra-Trail du Mont-Blanc, is a 106-mile loop around the Mont Blanc massif with over 32,940 feet of elevation gain. This mountain ultra attracts some of the top competition in the world, ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Who's planning on being at the starting line in Chamonix, and which runners hope to be first to ...