In this special bonus episode, Doc debates Carl Mandrioli, host of the Backpacking and Blisters podcast, on what is the world's toughest race. Doc advocates and defends the Barkley Marathons, and Carl does the same for the Eco Challenge. Stuntwoman and TV host Alice Ford weighs into the fray as the guest moderator and judge. Settle in and buckle up as Doc and Carl dust off their high school debating skills and duke it out, and Alice does her best to filter through the heated rhetoric and come up with a winner. Epic.