There are hundreds of pool games. Some of the more well known include eight-ball, nine-ball, ten-ball, straight pool, and one-pocket. As a competitive sport, pool is governed internationally by the World Pool-Billiard Association (WPA), which has national affiliates such as the US Billiard Congress of America (BCA), and which represents pool in the World Confederation of Billiard Sports, which in turn represents all forms of cue sports in the International Olympic Committee.
