About Triathlon

Triathlon is an endurance sports event consisting of swimming, cycling and running over various distances. In most modern triathlons, these events are placed back-to-back in immediate sequence and a competitor's official time includes the time required to "transition" between the individual legs of the race, including any time necessary for changing clothes and shoes. As a result, proficiency in swimming, cycling, and running alone is not sufficient to guarantee a triathlete a competitive time: trained triathletes have learned to race each stage in a way that preserves their energy and endurance for subsequent stages.

In modern triathlon there is an event for all ages, fitness and levels to participate in:

Standard race distances

For more information see http://en.wikipedia.org/wiki/Triathlon