As a CrossFit athlete, I used to think we were butchering Olympic sports—one at a time. I often ran into athletes from other sports, like weightlifters and rowers, who would point to sights they saw during throwdowns and CrossFit competitions to prove their point. Sights like a gnarly-looking clean during a max clean event, where the athlete somehow finds a way to stand up despite the bar being down at his nipples, his back being rounded, and his heels lifted off the ground—the kind of laboured, ugly lift that would only ever get applauded by CrossFit athletes. Meanwhile, rowers I knew would point to CrossFit athletes’ short, choppy, rushed rowing strokes—generally accompanied by flailing heads and curved spines—giving them a license...