2012 Xterra World Championship

Watch as some of the best endurance athletes in the world get caught in a struggle against Mother Nature and their own physical limits. Participants aged 15-75 representing 31 countries and 42 U.S. states took part in the 2013 XTERRA World Championship off-road triathlon, which combined a one-mile ocean swim with a 20-mile mountain bike and 7-mile trail run on the spectacular island of Maui.