Triathlon is a three discipline sport, combining swimming, cycling and running into one event. The sport reached new heights of exposure since 2000, when it was introduced to the Sydney Olympic Games. It was so popular that it has remained in the Olympic programme ever since.
Triathlon is considered by many to be the ultimate test of stamina. In the Olympic distance, athletes (both men and women) must swim 1500m, cycle 40km and then run 10km. The quickest men can finish the event in close to two hours.
Transitions from one stage to another are particularly important, after the swim the athlete has try and remove their wetsuit whilst they are running to pick up their bike, then get their crash helmet on before cycling. This has to be done as fast as possible to ensure time is not lost to opponents. Falling over whilst attempting to pull off tight fitting wetsuits is not uncommon!