Photo by @donaldmiralle Ashley Paulson, a professional triathlete with six ultramarathon wins, runs with her pacer on the way to breaking the women's course record and placing third overall in the Badwater, regarded as the world's toughest footrace. The Badwater is a 135-mile continuous running race starting in Badwater Basin, the lowest spot in North America at 285 feet below sea level—with temperatures that can exceed 125 degrees Fahrenheit—and ending at 8,650 feet above sea level at the base of Mount Whitney, the highest point in the contiguous United States.