Your complete guide to the UTMB races

33,000 feet of elevation gain in the French Alps, an average time of 40 hours on course, and the pressure of this sought-after race make it one of the most challenging. Did we mention the charcuterie?

UTMB is a brutally challenging race, but the race-week hype, world-class competition, and global party vibes have a way of making every runner feel special

A new book delves into the science of mountain-ultra-trail running

After a year that included a maelstrom of controversy, the world’s most prominent ultra-trail running event has righted its path

It’s an unfortunate tragedy, but, many argue, high-mountain adventure can never be completely free of risk

How does training for one of the most challenging 100-mile races on the planet compare with others? We dug into the data for answers. 

Trail running just held its Super Bowl in Chamonix, France. Here are three stories from the UTMB weekend.

U.S. runners have their best showing ever in the Ultra-Trail du Mont-Blanc

After living in France for more than a year, the Hoka-sponsored ultrarunner is as fit and prepared as he’s ever been

By offering minimal prize money, the sport’s most prestigious race might be excluding the best runners