The Most Diabolical Race and the Rise of Women Endurance Stars

On Monday evening, Maggie Guterl and Will Hayward set out for the 60th time on a four-mile loop through the hickory-covered hills of central Tennessee. It was dark and rainy on day three of the Big’s Backyard Ultra, a running race of fiendish design. There's no set distance, and no set total time, just endless laps around a four-mile course, which participants must complete once an hour. To win, you basically just have to be the last competitor still moving your legs. Learn more about your ad choices. Visit podcastchoices.com/adchoices