The first time Wiley Maple encountered the Streif, the world’s most fearsome downhill, he was twenty-one years old. Typically, downhill racers take a couple of training runs in the days leading up to the event. Before each one, they inspect the course, which entails side-slipping down while visualizing the line that will deliver them to the finish in the least amount of time. As a member of the U.S. Ski Team, Maple had side-slipped, and then skied, most of the World Cup’s other majestic, gnarly downhills, but this track—which descends an unremarkable and not particularly tall forested alp called the Hahnenkamm, in Kitzbühel, Austria—seemed to represent a whole new level of inhospitable.