A triathlon is a multisport race with three continuous and sequential endurance races. The word is of Greek origin, from τρεῖς or treis (three) and ἆθλος or athlos (competition).
Triathlon had its Summer Olympics debut at the 2000 Games, in Sydney, and has been contested since then. It is governed by the International Triathlon Union.
The Triathlon competitions at the 2008 Summer Olympics, in Beijing, were held on Monday, August 18 (women) and Tuesday, August 19 (men), on the Triathlon Venue at the Ming Tomb Reservoir in Shisanling.
The women's triathlon was part of the triathlon at the 2008 Summer Olympics programme. It was the third appearance of the event, which was established in 2000. The competition was held on Monday, August 18, 2008 at the Triathlon Venue at the Ming Tomb Reservoir in Shisanling. Fifty-five triathletes from thirty nations competed.
The men's triathlon was part of the Triathlon at the 2008 Summer Olympics programme. It was the third appearance of the event, which was established in 2000. The competition was held on Tuesday, August 19, 2008 at the Triathlon Venue at the Ming Tomb Reservoir in Shisanling. Fifty-five triathletes from 31 nations competed.
The triathlon events at the 2012 Summer Olympics were held in Hyde Park in London, United Kingdom, with the women's triathlon held on 4 August and the men's on 7 August. 110 triathletes from 39 countries competed with 55 men and 55 women competing. The races were held over the "international distance" and consisted of 1.5 kilometres (0.93 mi) swimming, 43 kilometres (27 mi) road cycling, and 10 kilometres (6.2 mi) road running.
The women's individual competition of the triathlon events at the 2011 Pan American Games was held on October 23 at the API Maritime Terminal in Puerto Vallarta. The defending Pan American Games champion is Julie Ertel of the United States.
The men's triathlon was one of the triathlon events at the 2012 Summer Olympics in London, United Kingdom. It took place on 7 August 2012, featuring 55 men from 32 countries. It was the fourth appearance of an Olympic men's triathlon event since the first at the 2000 Olympics in Sydney. The race was around Hyde Park, a 1.42 km2 park in central London. The race was held over the "international distance" and consisted of 1.5 kilometres (0.93 mi) swimming, 42.959 kilometres (26.693 mi) road cycling, and 10 kilometres (6.2 mi) road running.
The men's triathlon was part of the Triathlon at the 2004 Summer Olympics programme. It was the second appearance of the event, which was established in 2000. The competition was held on Thursday, August 26, 2004 at the Vouliagmeni Olympic Centre in Athens. Fifty triathletes from 26 nations competed.
The women's triathlon was part of the Triathlon at the 2004 Summer Olympics programme. It was the second appearance of the event, which was established in 2000. The competition was held on Wednesday, August 26, 2004 at the Vouliagmeni Olympic Centre in Athens. Fifty triathletes from 26 nations competed.
The women's triathlon was part of the Triathlon at the 2000 Summer Olympics programme. It was the first appearance of the event, and one of the first-day events at the 2000 Summer Olympics. The competition was held on Saturday, September 16, 2000 at the Sydney Opera House in Sydney.
The men's triathlon was part of the Triathlon at the 2000 Summer Olympics programme. It was the first appearance of the event, making this an official debut at the 2000 Summer Olympics. The competition was held on Sunday, September 17, 2000 at the Sydney Opera House in Sydney.
The triathlon competitions at the 2020 Summer Olympics in Tokyo will feature fifty-five athletes competing in each of the men's and women's events. It will also add the new mixed team relay event.
The Triathlon competitions at the 2014 Commonwealth Games, in Glasgow, were held in Strathclyde Country Park. The men's and women's individual events were held on Thursday 24 July and women's triathlon was the first medal event of the Games. Mixed team relay was held on Saturday 26 July for the first time ever in major multi-sport Games. Marisol Casado, ITU President and IOC member, commented: "We are delighted the Glasgow 2014 Organising Committee has embraced the Triathlon Mixed Relay. Triathlon is on currently on a high in the United Kingdom, and the Mixed Relay will offer an extra opportunity for the people of Glasgow to watch another thrilling and unpredictable event live on their city streets."
The men's triathlon was part of the Triathlon at the 2014 Commonwealth Games program. The competition was held on 24 July 2014 at Strathclyde Country Park in Glasow.
Triathlon competitions at the 2015 Pan American Games in Toronto were held from July 11 to 12 at the Ontario Place West Channel. The Pan American Games triathlon contained three components; a 1.5 km (0.93 mi) swim, 40 km (25 mi) cycle, and a 10 km (6.2 mi) run. There was a total of two medal events in the sport.
The men's individual competition of the triathlon events at the 2015 Pan American Games will be held on July 12 at the Ontario Place West Channel in Toronto, Ontario, Canada. The defending Pan American Games champion is Reinaldo Colucci of Brazil.
The women's individual competition of the triathlon events at the 2015 Pan American Games was held on July 11 at the Ontario Place West Channel in Toronto, Ontario, Canada. The defending Pan American Games champion is Sarah Haskins of the United States.
The men's individual competition of the triathlon events at the 2019 Pan American Games was held on July 27 at the Agua Dulce in Lima, Peru. The defending Pan American Games champion is Reinaldo Colucci of Brazil.
The women's individual competition of the triathlon events at the 2019 Pan American Games was held on July 27 at the Agua Dulce in Lima, Peru. The defending Pan American Games champion is Bárbara Riveros of Chile.
