Big Dog's Backyard Ultra: The Last Man Standing

An ostensibly simple race, Big’s Backyard Ultra has been described as one of the most mentally and strategically complex races in the world – contestants run a 4.1 mile loop every hour, day or night, nonstop. The last man or woman standing is crowned the victor… Big’s Backyard Ultra 2018 is the first in-depth look at this legendary event. Viewers explore the mental challenges of several race competitors, and get a rare peak behind-the-scenes with race director Gary “Laz” Cantrell, of Barkley marathon fame.