Ultrarunner Courtney Dauwalter talks with host David Willey a few weeks after completing 143 miles at the 24-Hour World Championships, despite a hip injury that had caused a rare DNF at the Western States 100 in June. Courtney discusses that "wake-up call," as well as her unorthodox training methods, how she fuels herself for such long races, and the time she went blind during a 100-mile race...and continued running anyway. She also shares what she loves so much about this demanding, transcendent sport.