Don Kannenberg is a mild-mannered accountant who busts out of his office on weekends and turns into superman. Kannenberg, 57, of Avon, pursues the extreme sport of obstacle course racing. Competitors taking part in these military-style challenges like to crawl through the mud under barbed wire, plunge into ice baths and bound over barriers of […]
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Barbed wire obstacles hi-res stock photography and images - Alamy
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Set bigger race goals and earn extra rewards
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Barbed wire obstacles hi-res stock photography and images - Alamy