Nytimes iconNytimesSep 26, 2026

In Backyard Ultramarathons, the Race Goes On Until Everyone Gives Up

Runners complete the same lap every hour for as long as they can — sometimes for days.

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Runners complete the same lap every hour for as long as they can — sometimes for days.

Runners complete the same lap every hour for as long as they can — sometimes for days. The brutal format has become surprisingly popular.

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Runners complete the same lap every hour for as long as they can — sometimes for days. The brutal format has become surprisingly popular.

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The brutal format has become surprisingly popular.

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