ul·​tra·​mar·​a·​thon | \ ˌəl-trə-ˈmer-ə-ˌthän How to pronounce ultramarathon (audio) , -ˈma-rə- \

Definition of ultramarathon

: a footrace longer than a marathon

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Other Words from ultramarathon

ultramarathoner \ ˌəl-​trə-​ˈmer-​ə-​ˌthä-​nər How to pronounce ultramarathon (audio) , -​ˈma-​rə-​ \ noun

Examples of ultramarathon in a Sentence

Recent Examples on the Web David McCartney is running an ultramarathon in all 50 states after donating a kidney Both the public safety alerts resulted in an extra 1,000 or so people vaccinated at each site, state health officials said. Shari Rudavsky, The Indianapolis Star, "Indiana has a COVID-19 vaccine supply. The new challenge is using it.," 28 Apr. 2021 Think about a suffer-fest like the Leadville Trail 100 ultramarathon. Jeremy Andrus, Forbes, "Should You Create A Brand Community Or Not?," 20 Apr. 2021 To read their books is to explore our failings and trot a few miles of their ultramarathon of remorse alongside them. Graeme Wood, The Atlantic, "The Awful Wisdom of the Hostage," 5 Apr. 2021 In Tampa, a flight attendant discovered new challenges while training for an ultramarathon. Anne Marie Chaker, WSJ, "The One Thing That Got Me Through the Pandemic Year," 16 Mar. 2021 The ritualistic ultramarathon that will see the Olympic flame pass between 10,000 torch bearers across Japan's 27 prefectures over the course of four months is due to start on March 25. Eamon Barrett, Fortune, "Are the Tokyo Olympics actually going to happen?," 19 Feb. 2021 Through the Hawaiian night, tormented by rain and blustering headwinds, Killeen accomplished a feat that makes most humans shudder: an ultramarathon. Sam Brief, chicagotribune.com, "Highland Park grad Jeremy Killeen goes from a ‘horrible’ marathoner to a record setter during Oahu Circumnavigation," 20 Dec. 2020 For those of us still in the social-distancing ultramarathon that is COVID-19 2020, cooking for yourself is getting, well, a bit old. Joanna O'leary, Houston Chronicle, "DIY noodle kits: The pandemic activity you didn't know you needed," 17 Sep. 2020 Felsenthal, 23, a 2015 Glenbrook North High School graduate, is preparing to start a solo 100 kilometer ultramarathon for charity. Karie Angell Luc, chicagotribune.com, "Northbrook man runs 62 miles over 14 hours in effort to raise money for students in Belize: ‘I was taking it one step at a time’," 25 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ultramarathon.' 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 ultramarathon

1977, in the meaning defined above

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The first known use of ultramarathon was in 1977

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Last Updated

2 May 2021

Cite this Entry

“Ultramarathon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultramarathon. Accessed 16 May. 2021.

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