Christopher McDougall

FKT Up? Kilian Jornet's Insane New Sport

With warp-speed ascents that include the Matterhorn (1:56) and Denali (9:43), ultrarunner turned alpinist Kilian Jornet Burgada is the king of the endurance world's latest obsession: fastest known...

On the Trail of the White Horse

On Tuesday March 27, ultrarunner Micah True set off on a 12-mile run in the Gila National Forest and didn't return. Days later, writer Christopher McDougall took off on a not-so-unfamiliar quest,...

Ultramarathoner Jenn Shelton

She drinks hard, fights dirty, and runs 100 trail miles faster than any woman alive. Meet Jenn Shelton, ultramarathoning's new antihero.