Published April 26, 2017 10:34AM

Ultrarunner Zac Marion first started jogging to lose the extra weight he carried from his days as a high school football player. But then he discovered that he actually enjoyed running—and was good at it, too. He finished his first 100-miler at Leadville last year, and this year won both the Bryce Canyon 100 and the Ouray 100 Mile Endurance Run.
Through race footage and interviews, this video profile, by outdoor and adventure sport filmmakers Duct Tape TV, charts Marion’s journey from regular guy to ultrarunning champ.