ul·​tra·​mar·​a·​thon ˌəl-trə-ˈmer-ə-ˌthän How to pronounce ultramarathon (audio)
: a footrace longer than a marathon
ultramarathoner noun

Example Sentences

Recent Examples on the Web After running a 50-mile ultramarathon around Lake Waramaug in Connecticut, Yasso lay down in a grassy field to recuperate before his drive back to Pennsylvania. Andrew Zaleski, Outside Online, 16 Aug. 2021 But the man who broke the color barrier at the world’s largest ultramarathon almost didn’t live to see that. Ryan Lenora Brown, The Christian Science Monitor, 14 Oct. 2022 Ironman and ultramarathon coach Heath Thurston cautions against returning to competition too soon, however. Amanda Macmillan, Outside Online, 7 Aug. 2014 Note that 300 minutes a week is five hours of running—not a heavy-duty ultramarathon training program, but still a substantial amount of exercise. Alex Hutchinson, Outside Online, 18 Aug. 2022 Five-time Olympic gold medalist swimmer Nathan Adrian, six-time world champion wrestler Adeline Gray and ultramarathon runner Kyle Pietari are among the athletes sharing their fecal matter for the benefit of humanity. Jamie Rosen, Robb Report, 31 July 2022 For many runners, running the Grand Canyon is a bucket-list item, nestled somewhere between the Badwater 135 ultramarathon and the Boston Marathon. Susan Lacke, Outside Online, 2 May 2019 In short, fueling during an ultramarathon often takes place on a knife’s edge. Patrick Wilson, Outside Online, 15 June 2020 Definitely take some time off, especially if this is your first ultramarathon, Ironman, or other type of extreme race. Amanda Macmillan, Outside Online, 7 Aug. 2014 See More

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.

Word History

First Known Use

1977, in the meaning defined above

Time Traveler
The first known use of ultramarathon was in 1977

Dictionary Entries Near ultramarathon

Cite this Entry

“Ultramarathon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultramarathon. Accessed 8 Feb. 2023.

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