Over the last several years, the Desert Solstice 24 Hour and 100 Mile has seen a number of superhuman performances—among the most impressive feats of ultra endurance in the country and world. This year’s event was no exception, as the relatively unknown Gina Slaby circled the 400-meter Central High School track in Phoenix, AZ, for 100 miles in a new world record time of 13:45:49.