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 In Chicago, Tony had been getting into triathlons and road rides. Brendan Leonard, Outside Online, "My Bike Ride Across America," 3 Mar. 2020 There were nine mixed events over all in Rio; there will be 18 in Tokyo, including mixed-team triathlon and mixed-doubles table tennis. Chris Museler, New York Times, "Mixed Events Shake Up Olympic Sailing," 4 Aug. 2019 Hundreds of Chevron volunteers will participate in the upcoming Running of the Bulls, the Houston Texans kids triathlon and Texans Care volunteer day. Aaron Wilson, Houston Chronicle, "Texans partner with Chevron for volunteering," 25 June 2018 Winter triathlons are relatively new on the professional circuit. Chelsey Lewis, Milwaukee Journal Sentinel, "Boulder Junction's Forest Frenzy is a fun winter triathlon for hardy athletes," 5 Dec. 2019 More: Half Ironman triathlon isn't enough, Scottsdale husband-wife taking on full 5 weeks later Reach the reporter at Jeff Metcalfe, azcentral, "Sen. Kyrsten Sinema makes another big Ironman improvement," 28 Nov. 2019 More than 4,000 total participants are expected for the Olympic distance age-group national championships on Saturday and the open qualification sprint-distance triathlon Sunday., "Athletes arrive for USA Triathlon Age Group Championships, watching water conditions," 9 Aug. 2019 As for the rest of the weekend, the kids’ triathlon begins Saturday morning, while the main Chicago Triathlon event falls on Sunday morning. Adam Lukach, RedEye Chicago, "Ready, set, no pants: Underwear Run added to this year's Chicago Triathlon," 17 Aug. 2017 Late April / Early May: Eight finalists will compete in an esports triathlon with all three games — Rocket League, Madden, and Fortnite — at the GSPC. Sean Collins, Dallas News, "Complexity announces ‘esports triathlon’ for graduating Frisco ISD students, esports 101 class for parents," 21 Jan. 2020

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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Statistics for triathlon

Last Updated

22 Mar 2020

Cite this Entry

“Triathlon.” Dictionary, Merriam-Webster, Accessed 3 Apr. 2020.

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How to pronounce triathlon (audio)

English Language Learners Definition of triathlon

sports : 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

Rhyming Dictionary: Words that rhyme with triathlon Encyclopedia article about triathlon

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