Sports, athletics, and play are fundamental aspects of the past and present of every human culture. From team games to individual challenges, sporting contests remain a globally popular form of competition, exercise, and skill building for people of all ages and backgrounds. The following standards have been compiled for you as references describing the sizes, parameters, and regulations that govern the playing fields, balls, equipment, and rules for each specific sport. We will continue to expand and update these guides over time to further illustrate the diversity of sports and games played around the world.