" more than 90 percent of the female runners come home with a buckle, while 50 percent of the men come up with an excuse. Not even Ken Chlouber can explain the sky-high female finishing rate, but he can damn well exploit it: “All my pacers are women,” Chlouber says. “They get the job done. "

― Christopher McDougall , Born to Run: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen