Extreme endurance sports test athletes' physical and mental strength as they compete in some of the most brutal conditions imaginable. Extreme Sports Events gives readers a glimpse into the challenges of the race, how athletes prepare, and the physical and mental toll the race takes on competitors. This series introduces readers to some of the world's most intense competitions. Aligned to Common Core Standards and correlated to state standards. SportsZone is an imprint of Abdo Publishing, a division of ABDO.