U.S. ultrarunner John Kelly sets new record on Wainwrights 214 peaks

Check out his strava upload with 36,000m (118,110 ft) of climbing across 523 kilometres

Karel Sabbe recaps his wild fourth-loop experience at Barkley Marathons

His fourth loop included chatting with trash cans, seeing ghosts and eventually, getting picked up by the police

Karel Sabbe leading at the Barkley Marathons

Sabbe is the first to head out for a fourth loop, completing three loops in 32 hours