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

She's gone on to compete in triathlons across the country and qualify for the National Senior Games. Tim Tadder, CNN, "'The spirit is undaunted': Portraits showcase strength of senior athletes," 29 June 2019 The silver medalist in 2000 when triathlon made its Olympic debut in her native Sydney, Australia, Jones is now an amateur. San Diego Union-Tribune, "Toland, Jones win San Diego International Triathlon," 24 June 2019 Sprint triathlons give Ridenour the opportunity to work on his speed. Andrew Turner,, "Newport Harbor's Cole Ridenour is a top-tier triathlete," 18 June 2019 Two men, including a firefighter, died after the swimming leg of an Iron Man 70.3 triathlon in Madison, Wisconsin, over the weekend, according to authorities. Safia Samee Ali, NBC News, "Two Wisconsin men die competing in IronMan 70.3 triathlon," 12 June 2019 Beth Ferrier began competing in triathlons and finally became a teacher, and Barbara Bowman went on to star in thirty TV commercials, including ones for McDonald’s and Holiday Inn. * But then came Hannibal Buress. Longreads, "How the Cosby Story Finally Went Viral — And Why It Took So Long," 7 June 2019 And while extreme distance runners reach maximum performance during high-intensity races, expectant mothers often hit the same mark at a lower intensity over a longer period of time, typically without completing a triathlon. Scottie Andrew And Saeed Ahmed, CNN, "The two groups that reach the peak of human endurance? Extreme athletes and pregnant women," 6 June 2019 The 51-year-old Milwaukee real estate agent enjoyed sports but, like Cooley, never contemplated doing a triathlon. Jeremy Fuchs,, "Why Some Cancer Survivors Are Going From Treatment to Triathlon," 5 June 2019 Through the years, she’s done triathlon, jujitsu, boxing, swimming and barre classes. San Diego Union-Tribune, "When it comes to fitness, she’s in it for the long run," 4 June 2019

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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Statistics for triathlon

Last Updated

13 Jul 2019

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Time Traveler for triathlon

The first known use of triathlon was in 1973

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English Language Learners Definition of triathlon

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

More from Merriam-Webster on triathlon

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

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something desired as essential

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