Skateboarding is considered an extreme freestyle sport with limits that are based on the imagination and athletic ability of the person riding the skateboard. A sport is defined as an activity involving physical exertion and skill in which an individual or team competes against another or others for entertainment.
Skateboarding is typically done in a skate park or on residential streets. Competitive skateboarding is judged on a point system. The levels of difficulty vary in skateboarding based on the innovation and ability of the athlete. Some popular but difficult tricks in skateboarding include the Ollie, the Flip Trick, grinds and aerials.