First things first, what is a triathlon?

Triathlon is a multisport event that combines swimming, biking and running. There are various distances for each race. The standard distances are a 0.9 mile swim, followed by a 25 mile ride, concluded with a 6.2 mile run (1.5km/40km/10km). This is known as an Olympic distance triathlon, because it is the distance that is raced in the Olympics (how 'bout that?).