The Women's National Basketball Association (WNBA) is a professional basketball league in the United States. It is currently composed of twelve teams. The league was founded on April 22, 1996, as the women's counterpart to the National Basketball Association (NBA), and league play started in 1997.
The regular season is played from May to September, with the All Star game being played midway through the season in July (except in Olympic years) and the WNBA Finals at the end of September until the beginning of October.
Starting in 2020, a midseason tournament, the Commissioner's Cup, will be added. Initially, regular-season Cup games were to be played through early July, followed by a final match in August; however, this schedule is subject to change due to disruptions from the COVID-19 pandemic.
Five WNBA teams have direct NBA counterparts and play in the same arena: Indiana Fever, Los Angeles Sparks, Minnesota Lynx, New York Liberty, and Phoenix Mercury. The Atlanta Dream, Chicago Sky, Connecticut Sun, Dallas Wings, Las Vegas Aces, Seattle Storm, and Washington Mystics do not share an arena with a direct NBA counterpart, although four of the seven (the Dream, the Sky, the Wings, and the Mystics) share a market with an NBA counterpart, and the Storm shared an arena and market with an NBA team at the time of its founding. The Dream, the Sky, the Sun, the Wings, the Aces, the Sparks, and the Storm are all independently owned.