Modern Triathlon has existed since 1974. It is an endurance sport consisting of 3 disciplines; swimming, cycling and running (or swim bike run).

The Original Triathlon even involved a canoe.

Triathlon became an olympic sport in summer of 2000 in Sydney and has been part of the olympic games ever since. Triathlon and Triathletes are governed by the International Triathlon Union (ITU).

The transitioning from swimming to cycling is called T1. The Transition from cycling to running is called T2 – these transition periods have almost become as important as the 3 disciplines themselves. The transition areas are where the triathletes keep their gear (such a bike, helmet etc..).