Anton Krupicka is one of the most iconic ultrarunners and long-distance trail athletes in the U.S. Known for his minimalist approach—shirtless miles, long hair, and a bushy beard—he became a defining figure in the sport. Over nearly three decades, Anton has won the Leadville 100 twice and earned podium finishes at ultramarathons around the world. Beyond racing, he’s set 28 fastest known time (FKT) records on notable routes, solidifying his reputation in endurance running.