National Ninja League Season 4 World Championships: Chris Wilczewski Interview: The Evolution of the NNL

National Ninja League founder and president Chris Wilczewski joins me during the NNL Season 4 Finals to discuss how the event has evolved since we first talked in season 1. Also, we discuss the evolution of American Ninja Warrior, how to get your gym in the NNL, and what it was like staying in ANW Bootcamp!

▶Chris Wilczewski
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▶National Ninja League
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