The regulation basketball used in the Women’s National Basketball Association is distinct in size from the one used in the National Basketball Association. The WNBA ball has a circumference of 28.5 inches, while the NBA ball has a circumference of 29.5 inches. This one-inch difference is the primary distinguishing factor. As a concrete example, imagine holding both basketballs; the difference, though seemingly small, can be noticeable in hand size and grip, especially for players with smaller hands.
Employing a smaller basketball in the WNBA is intended to optimize player performance and enhance the game’s flow. A ball better suited to the average hand size of female players can improve ball handling, shooting accuracy, and overall comfort. Historically, the decision to use a smaller ball was based on research and feedback aimed at increasing scoring and improving the aesthetic appeal of the game. The benefits are realized in enhanced player control and potentially greater efficiency in shooting percentages.