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John Zincone, Air Force Space Command, leads the race during the Schriever Rough and Tough Scramble July 17, 2014, at Schriever Air Force Base, Colo., as part of Schriever Week. The course included a low crawl through a mud pit, a swim through a muddy pond, tire flips, burpees, lunges, push-ups and more. (U.S. Air Force photo/Dennis Rogers)


Getting muddy

John Zincone, Air Force Space Command, leads the race during the Schriever Rough and Tough Scramble July 17, 2014, at Schriever Air Force Base, Colo., as part of Schriever Week. The course included a low crawl through a mud pit, a swim through a muddy pond, tire flips, burpees, lunges, push-ups and more. (U.S. Air Force photo/Dennis Rogers)

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