Anyone who's participated in a Spartan Race, or any of the tons of obstacle courses that have been sprouting up all across the country, knows how physically demanding it can be. Mud runs, wall climbs, fire jumping, you name it, theres a race out that has it all then some.

During the race, the primary focus is always about finishing an obstacle and getting out of there in one piece. The greatest thing about the grueling courses is the pure emotion and grit that can captured on a persons face when they're climbing a 15 foot wall, or crawling under barbed wire through mud. We've compiled these gut wrenching moments for some, into a gallery of the most photogenic pictures captured at a Spartan Race.

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