Rovný Dosažitelný inženýrství spartan race sand bag obstacle Západní Pěšky Legrační
Spartan Race - Sandbag Carry by env92 on DeviantArt
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Participants pull sand bags up a rope and pulley system during a Spartan Sprint race at Fort Bragg, N.C., Sept. 19, 2015. Fort Bragg hosted the race, which drew more than 6,800
Participants pull sand bags up a rope and pulley system during a Spartan Sprint race at Fort Bragg, N.C., Sept. 19, 2015. Fort Bragg hosted the race, which drew more than 6,800
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