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Some of the most popular ninja athletes, including ‘The Island Ninja" Grant McCartney, race side by side on a double obstacle course.
Four teams of Ninja superstars battle on the side by side course, including top climber Ian Dory and "The Godfather" David Campbell.
Ninja legends Brent Steffensen and Michelle Warnky join other superstar athletes racing on the side-by-side obstacle course.