ultramarathon

noun

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

Examples of ultramarathon in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Run Rabbit Run is not typically mentioned as one of the hardest ultramarathon races in the United States, and 2017 wasn’t an abnormally hot or difficult year. Brendan Leonard, Outside Online, 5 Nov. 2024 This condition, also known as hyponatremia, is most prevalent in endurance athletes like ultramarathon runners and triathletes. Tim Petrie, Dpt, Verywell Health, 8 Oct. 2024 Satisfy wanted to build an ultra-durable pair of shorts that could withstand ultramarathons through desert brambles and snags or forests dense with deadfall. Grayson Haver Currin, Outside Online, 8 Oct. 2024 Ratcliff is also involved in the America’s Cup sailing competition and has personally competed in ultramarathons. William Roberson, Forbes, 30 Sep. 2024 See all Example Sentences for ultramarathon 

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 30 Nov. 2024.

More from Merriam-Webster on ultramarathon

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!