Women's National Basketball Association (WNBA)

Rules, equipment and game format

The WNBA follows rules similar to other professional basketball organizations while using a few specific standards for the women's game. Games are played with a ball that is slightly smaller than the men's professional ball; the WNBA ball is commonly described as one inch smaller in circumference than the NBA ball (ball specifications). Playing time, shot clock length and roster limits are set by the league and have evolved since its founding — official rule summaries and current regulations are listed on the league's rules pages (rules and regulations).

Structure and season

The league season traditionally runs during the warmer months, featuring a regular season followed by postseason playoffs and a championship series. Teams are based in cities across the United States; the exact number of franchises has changed over time as the sport and business have developed. The WNBA operates an annual player draft, trade windows, and salary and roster mechanisms to maintain competitive balance and manage personnel. For team listings and franchise information consult team pages.

History and development

Conceived as a professional outlet for elite women players and launched in the late 1990s, the WNBA grew from growing fan interest in women's basketball at the collegiate and international level. It benefited from organizational ties to the men's professional game and expanded media exposure. Over the years the league has adjusted competition formats, business models and community outreach programs as it matured; a history overview can be found at league history.

Notable players and cultural impact

The WNBA has showcased many of the game's most recognized athletes and helped raise the profile of women's sports worldwide. Star players, coaches and role models from the league have influenced youth participation, fashion and social campaigns. The league has also been a platform for athlete activism and community initiatives, connecting sports performance with broader cultural conversations. For broader context on the WNBA's relationship with other basketball organizations see affiliations and comparisons with the men's game at NBA comparison.

Key distinctions and facts

• Professional level: The WNBA is the highest level of professional women's basketball in the U.S.
• Seasonal calendar: A summer-centered schedule differentiates it from many international leagues.
• Roster and equipment: League roster sizes and the slightly smaller ball reflect adaptations for the women's professional game; see game length and timing for timing details.

The WNBA continues to evolve in competition, commercial footprint and cultural visibility, serving fans, players and communities while contributing to the global growth of women's basketball.