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 […]
Race Recap: Newbsanity Mud Gauntlet Mud Run, OCR, Obstacle Course Race & Ninja Warrior Guide
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Barbed Wire Crawl - OCRAddict
Bulletin Daily Paper 11/09/10 by Western Communications, Inc. - Issuu
Barbed wire obstacles hi-res stock photography and images - Alamy
15K Archives - Tough Mudder
Tough Mudder: The Barbed Wire Crawl
2011 06 competitor magazine by Alejandro Piñeiro - Issuu
Obstacle Course Races: Their History and Future
Tough Mudder stops at Gopher Dunes
Obstacle race crawl mud hi-res stock photography and images - Alamy
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