Las Vegas Sun

August 25, 2016

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Women with matching Superman shirts start off 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

Women with matching Superman shirts start off 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.