The American Contract Bridge League is a nonprofit organization fostering all levels of bridge activity in the Houston metropolitan area from bridge lessons to duplicate tournaments.

Gulf Greyhound Park, the world's largest and No. 1 greyhound racing operation, offers live greyhound racing and pari-mutuel wagering year-round, rain or shine.

The Houston Aeros, Houston's American Hockey League team, play 80 games during its October-April season.

The Houston Astros led their city to National League Wild Card victories in 2004 and 2005 and continued on to the World Series after becoming 2005 National League Champions.

Champions of the 2006 and 2007 MLS Cup, the Houston Dynamo, Houston's new MLS soccer team, played its first game at Robertson Stadium on April 1, 2006.

Three-time national champion Houston Energy is one of 17 teams nationwide in The Women's Professional Football League (WPFL), the original and longest operating women's professional American football league in the United States.

The Houston Happy Hikers are a non-competitive walking group for all ages associated with the American Volkssport Association.

Located on 26 beautifully wooded acres in the heart of Houston, The Houston Polo Club has showcased the best in the sport of polo and spectacular special events since 1928.

Winners of back-to-back NBA championships in 1994 and 1995, the Rockets continue to be top competitors in the Western Conference of the NBA.

January 2005 saw the rise in Houston of women's genuine flat track roller derby. The Houston Roller Derby (HRD), a league consisting of four teams, was inspired by the nation-wide revival of roller derby as an athletic sport.