The Women's Tennis Association or the WTA was established in the month of September in 1973. Since then, the organization has been holding a number of tennis tournaments every year. At present WTA is known as the Sony Ericsson WTA Tour. The tournaments organized under the WTA tennis can be categorized in various groups. The main groups of WTA Tennis tournaments are Grand Slams, Season-ending championships and Tier tournaments. The Tier tournaments are again divided into four sub-categories named Tier I, Tier II, Tier III and Tier IV. Players participating in the WTA Tennis tournaments are awarded points on their performance during the competition. These points are calculated to decide their places on the ITF rankings. Apart from these tournaments, there are also some ITF events included in the schedule of WTA Tennis.
Many female players have become famous for their performance in various tournaments held under the WTA Tennis. Justine Henin, Steffi Graf, Martina Navratilova, Chris Evert, Monica Seles, Lindsay Davenport, Venus Williams, Margaret Smith Court, Virginia Wade, Evonne Goolagong Cawley, Billie Jean King, Martina Hingis, Kim Clijsters, Tracy Austin, Arantxa Sanchez-Vicario, Conchita Martinez and Helena Sukova are some of the famous tennis players, who have become famous winning various tournaments scheduled under WTA Tennis.
