Tim Tollefson's Toughest Ultra Marathon | Most Challenging Trail Race??

Pro Ultra Marathon runner Tim Tollefson discusses the most challenging ultra marathon he's ever completed and gives some insights about what he learned along the way. Shop All Men's HOKA ONE ONE Running Shoes: https://www.runningwarehouse.com/catpage-HOKAM.html?from=youtube Shop All Women's HOKA ONE ONE Running Shoes: https://www.runningwarehouse.com/catpage-HOKAW.html?from=youtube Shop HOKA Torrent: https://www.runn...