As stated by the Sony Ericsson WTA Tour's ranking system, reaching the semifinals of any of the major tournaments garners 900 ranking points for a player.
Two, Maria Sharapova and Francesca Schiavone.
5006
61
In the semifinals there is 7 rounds, but which ever team wins 4 rounds first is who can move on.
12 points
4
1500 points
700 2000 ATP points
1200
2000
48 points
4 times