Hardball Doubles Squash was invented in Philadelphia, PA in 1907 and was standardized in the early 1920s. Today, there are four major doubles organizations overseeing more than 15,000 players in North America: Squash Canada, U.S. Squash, the Squash Doubles Association (SDA) and Women’s Doubles Squash Association (WDSA). These four groups manage all aspects of doubles … Continue reading Doubles