Trail

Every July Fourth, hundreds of racers descend on Seward, Alaska, for one of the most difficult short-distance races on the planet—3,000 feet up, and then straight back down Mount Marathon

In a sport plagued by career-ending injuries, somehow Walmsley hasn’t been hurt once during his phenomenal stretch of success

During my time in South Carolina, Paris Mountain loomed large—until I finally ran up it

Sunny Stroeer got sick and still set the speed record on Aconcagua. We sat down with the ex weekend warrior to talk training, coffee, and the all-women team that tackled the highest mountain in South America.

A shortlist of running's most notorious sufferfests

Thirty-one thousand miles later, the writer looks back at what a half-century running habit taught him about life, pathfinding, and working off lots of French wine

If you’re going to endure a trail-running race, you may as well do it someplace beautiful

You’ve probably never heard of the Ecuadorian, but he’s behind the force behind the speed records on some of the world’s highest peaks

Brought to you on film by running’s greatest bromantical couple

Over the past decade, ultrarunning has gone from a fringe pursuit for distance freaks to a hypercompetitive sport attracting big-time sponsors. But a mysterious training condition is suddenly plaguing its ranks, robbing a generation of top athletes of their talents and forcing victims to wonder: Is it possible to love this sport too much?