Toughest Races in the World
Toughest Races in the World # 2
Ironman World Championship
As the name suggests, Ironman World Championship is a competition to test different skills, muscles and stamina on land and sea. Yes, Ironman World Championship involves completion of swimming for 2.4 miles then biking for 112 miles, and then running for 26.2 miles. This race takes place in Hawaii, a paradise that will challenge your guts. Since 1978 they have attracted people from across the world to test their fit bodies.