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February 20, 2017

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Competitors make their way through the "Arctic Enema" during the Tough Mudder in Beatty, Nev. Sunday, April 14, 2013. Tough Mudder events are hardcore 10-12 mile obstacle courses designed to test all-around strength, stamina, mental grit, and camaraderie.

Steve Marcus

Competitors make their way through the "Arctic Enema" during the Tough Mudder in Beatty, Nev. Sunday, April 14, 2013. Tough Mudder events are hardcore 10-12 mile obstacle courses designed to test all-around strength, stamina, mental grit, and camaraderie.