The Women's Tennis Association began the North American Hard Court Swing this week with the Mubadala DC Open in Washington, D.C.

This transition is critical for professional athletes as they move from the grass-court season to hard courts. The shift allows players to adjust their game and physical conditioning before competing in the US Open, the final Grand Slam of the calendar year.

The swing consists of 12 events [1] designed to provide high-level competition across the region. By starting the series in Washington, D.C., the tour establishes a baseline for player performance on the faster, more consistent surfaces typical of North American tournaments.

Hard-court play differs significantly from the grass surfaces used earlier in the summer. The bounce is higher and the friction is more predictable, which often leads to longer rallies, and different tactical approaches to serve and volley play.

Tournament organizers and players use these early events to shake off the rust of the transition period. The Mubadala DC Open serves as the primary gateway for the tour to pivot its focus toward the hard-court requirements of the upcoming major championships.

As the tour progresses through the remaining events in the swing, the intensity of competition is expected to increase. Players will seek to build momentum and ranking points while acclimating to the heat and humidity often found in the U.S. during the August stretch.

The Mubadala DC Open in Washington, D.C., marks the start of a 12-event series

The start of the Hard Court Swing represents a strategic pivot in the tennis calendar. Because the US Open is played on hard courts, the 12-event sequence ensures that the world's top players have sufficient time to adapt their footwork and timing from the low-bounce grass courts of Europe to the higher-bounce surfaces of North America, directly impacting the competitiveness of the final Grand Slam.