ultramarathon
noun
ul·tra·mar·a·thon
ˌəl-trə-ˈmer-ə-ˌthän 
-ˈma-rə-
: a footrace longer than a marathon
Examples of ultramarathon in a Sentence
Recent Examples on the Web
Itzler personally runs six minutes and walks four, a ratio he’s used across ultramarathons, according to his social media post.
—
Avery Newmark, AJC.com, 16 Mar. 2026
Tristan is the ultramarathon of opera roles, long and punishing, and not many tenors carry it off with such unflagging grace.
—Justin Davidson, Vulture, 11 Mar. 2026
The supplements out today have an incredibly wide variety of electrolyte concentrations, said Patrick Burns, who practices emergency medicine at Stanford Health Care and occasionally runs in ultramarathons.
—ABC News, 28 Feb. 2026
Kristen was also an ultramarathon runner and someone who found joy and purpose in caring for animals.
—Jesse Sarles, CBS News, 5 Jan. 2026
See All Example Sentences for ultramarathon
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Avery Newmark, AJC.com, 16 Mar. 2026
Tristan is the ultramarathon of opera roles, long and punishing, and not many tenors carry it off with such unflagging grace.
—Justin Davidson, Vulture, 11 Mar. 2026
The supplements out today have an incredibly wide variety of electrolyte concentrations, said Patrick Burns, who practices emergency medicine at Stanford Health Care and occasionally runs in ultramarathons.
—ABC News, 28 Feb. 2026
Kristen was also an ultramarathon runner and someone who found joy and purpose in caring for animals.
—Jesse Sarles, CBS News, 5 Jan. 2026
See All Example Sentences for ultramarathon
Cite this Entry
“Ultramarathon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultramarathon. Accessed 18 Mar. 2026.
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