Women's Tennis Association

WTA stands for Women's Tennis Association, and is also known as the WTA Tour, and is to women's tennis what the ATP is to men's tennis. In 2005 the WTA changed its name into The Sony Ericsson WTA Tour.

Ranking

The organization releases a weekly ranking of the players's performance in the tour. Players' ranking points are counted how they fare on individual rounds of a tournament (round points) as well as the rank of the players they defeat (quality points). The following table gives the distribution of "round points":

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(*) ?+H? indicates that Hospitality is provided

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(**) ?M? indicates a Masters event

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The "quality points" are calculated according to the table below:

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This is a list of players who have achieved the number one position in singles since the rankings' inception in 1975:

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