WTA the name of the organization that in 1973, for the supply of profit and the demands of players, professional tennis into the hands of Billie Jean King, who is one of the professional players, tennis was established. The main headquarters of this organization in the city of St. Petersburg, in the state of Florida can be, and its office in Europe, in the city of London and in Asia, Oceania, in Beijing China. This organization is responsible for holding the most important tournaments for professional women. Comment: that the WTA will be held into 4 categories can be divided into:

1. Tournament, Grand Slam ( 4 race )

2. Race WTA Tour Championships that the presence of 8 of the top ranking Solo and doubles will be held. That from 2011 to 2013, the tournament in Istanbul, Turkey, is held.

3. Comment: under the title of Premier Tournaments, which in terms of financial value to 3 categories can be divided into : A. matches that includes 4 racing is a combination between men and women and is the sum of the value of its financial, 5/4 million offers are. Indian Wells, Madrid and more. Beijing and who , including the tournament. B . 5 Race with a financial value of $ 2 million . Includes: Dubai, Rome, Cincinnati, etc., Montreal/Toronto and Tokyo. C. 10 race, with the value of 600 thousand dollars to 1 million dollars

4. Comment: under the title of International Tournaments, which includes 31 tournaments in a year is worth it from 220 thousand dollars and 600 thousand dollars. Calendar, tournament, WTA, tournament Brisbane in the beginning with the tournament of Bali in Indonesia ends.