ultramarathon

American  

[uhl-truh-mar-uh-thon, -thuhn] / ˌʌl trəˈmær əˌθɒn, -θən /

noun

1. any footrace of 50 or more miles.

---

Etymology

Origin of ultramarathon

First recorded in 1975–80; ultra- + marathon

Example Sentences

And after competing in the Sydney Marathon this August, he’ll run a 100-mile ultramarathon in Arizona in October.

From Los Angeles Times

In his new memoir, “Everything You Want Is on the Other Side of Hard,” runner Ken Rideout relives a physically grueling 2023 ultramarathon in the Gobi Desert.

From The Wall Street Journal

I was two days into the Gobi March, a brutal 155-mile ultramarathon through the steppes, sand dunes and rock valleys of Central Mongolia.

From The Wall Street Journal

I thought I could just show up, fake my way through my first ultramarathon and destroy everyone.

From The Wall Street Journal

Earlier research found that ultramarathon runners often experience a breakdown of healthy red blood cells during races, which can potentially lead to anemia.

From Science Daily