Rugged Maniac is an annual obstacle course race, otherwise known as a mud run, which is hosted in multiple cities across the United States and Canada. Participants run a 5 kilometer (3.1 mile) course with obstacles ranging from muddy water slides, crawling through tunnels, jumping over logs set on fire, and scaling large, curved walls. Billionaire entrepreneur Mark Cuban has invested in Rugged Maniac, after meeting them on season 5 of the hit ABC reality show Shark Tank.