Paddleball or "one wall paddleball" is an American ball game that consists in hitting a small rubber ball against a single wall by using paddles. It can be played in singles (1 versus 1) or in doubles (2 versus 2). The general rule of the game is that the ball must hit the wall, but mustn't hit the court floor more than once in order to be a valid rally.
The balls are usually black, blue or green, and although the paddles were originally made of wood, new materials such as graphite and titanium paddles have replaced them throughout the years.
The game is popular in places where the weather permits outdoor plays such as New York, Florida, New Jersey, Connecticut, California and Puerto Rico. Tournaments are ruled by the American Paddleball Association.