Courtney Dauwalter

Dauwalter's 2023 summer is the best single season in ultrarunning: she won Western States, Hardrock and UTMB within about ten weeks, setting course records at the first two. Earlier she had won the 240-mile Moab race outright by about ten hours and run 279 miles at Big's Backyard Ultra, a format where runners must complete a 4.17-mile loop every hour until one remains. Mountain 100s, 200-milers and backyard racing are three different sports, and she has mastered all of them.