Triathlon had its Summer Olympics debut at the 2000 Games, in Sydney, when men's and women's individual events were first held, and has been contested since then. In 2021, at the delayed 2020 Summer Olympics a mixed team relay event was held for the first time. The sport, and its Olympic events, are governed by the International Triathlon Union, known since 2019 as World Triathlon.

Bevan John Docherty is a triathlete from New Zealand, who won medals twice at the Olympic Games. Docherty attended Tauhara College, Taupō.