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ultramarathon

[ uhl-truh-mar-uh-thon, -thuhn ]

noun

  1. any footrace of 50 or more miles.

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Word History and Origins

Origin of ultramarathon1

First recorded in 1975–80; ultra- + marathon

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Example Sentences

If snow is more your thing, the 6633 Extreme Winter Ultramarathon runs 350 miles across the Arctic Circle.

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