How Kilian Jornet fueled his 24-hour activity

He consumed 40 gels and 5,500 – 6,000 calories total

Chihping Fu: the most self sufficient ultrarunner

Carrying everything he needs on his back, including his camera, Fu loves the challenge of problem solving on a trail

Colorado woman wins Moab 240-miler in Utah outright by 10 hours

Courtney Dauwalter completed the 383K ultra in less than 58 hours

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