tri·​ath·​lon | \ trī-ˈath-lən How to pronounce triathlon (audio) , -ˌlän, nonstandard -ˈa-thə- \

Definition of triathlon

: an athletic contest that is a long-distance race consisting of three phases (such as swimming, bicycling, and running)

Examples of triathlon in a Sentence

Recent Examples on the Web Eric McElvenny, who lost his right leg below the knee to an IED, was happy with his sixth-place finish in the triathlon but felt sadness about developments in Kabul. Los Angeles Times, 4 Sep. 2021 Stockwell, 41, who received a Purple Heart and a Bronze Star, will compete in the triathlon at her third Paralympic Games. New York Times, 24 Aug. 2021 Some of the sporting events include swimming, open water swim, surfing, stand-up paddle and the triathlon. Emmett Hall,, 19 Aug. 2021 Waukesha County's Gwen Jorgensen, of Waukesha, became the first American woman to win gold in the triathlon at the 2016 Olympics. Jr Radcliffe, Milwaukee Journal Sentinel, 6 Aug. 2021 Some are lining sidewalks to watch public facing-events, like cycling and the mixed triathlon. Joshua Berlinger, Aditi Sangal And Adam Renton, CNN, 2 Aug. 2021 The Syracuse graduate became third American woman to ever medal in the triathlon. Baltimore Sun Staff,, 31 July 2021 Morgan Pearson became the first American men to win an Olympic medal in triathlon. Stacy St. Clair,, 31 July 2021 Ironman World Championships triathlon to leave Hawaii for Utah because of COVID-19 concerns. Bryan Schott, The Salt Lake Tribune, 24 Sep. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triathlon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of triathlon

1973, in the meaning defined above

History and Etymology for triathlon

tri- + -athlon (as in decathlon)

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Time Traveler for triathlon

Time Traveler

The first known use of triathlon was in 1973

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triatic stay

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Last Updated

11 Oct 2021

Cite this Entry

“Triathlon.” Dictionary, Merriam-Webster, Accessed 21 Oct. 2021.

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English Language Learners Definition of triathlon

: a long-distance race that has three parts (such as swimming, bicycling, and running)

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Thesaurus: All synonyms and antonyms for triathlon Encyclopedia article about triathlon


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