Women's Tennis Association (WTA)

The Women's Tennis Association (WTA), founded in 1973 by Billie Jean King, is the principal organizing body of women's professional tennis. It governs theWTA Tour which is the worldwide professional tennis tour for women. Its counterpart organization in the men's professional game is the Association of Tennis Professionals (ATP).
The Women's Tennis Association was founded in the month of June 1973, but can trace its origins back to Houston, Texas with the inaugural Virginia Slimstournament, arranged by Gladys Heldman, and held on 23 September 1970. Rosie Casals won this first event. The WTA's corporate headquarters is in St. Petersburg, Florida. The European headquarters is in London, and the Asia-Pacific headquarters is in Beijing.