http://www.usopenseries.com/leaderboard/custom.sps?itype=6692&icustompageid=18221

Standings:
1. Brie Whithead 144
2. Jelena Jankovic 127
3. Venus Williams 125
4. Tathiana Garbin 114
5. Vera Zvonareva 84
6. Sania Mirza 75
7. Margalita Chakhnashvili 75
8. Dominika Cibulkova 72
9. Alona Bondarenko 65
10.Elena Dementieva 60
11.Martina Hingis 60
12.Nikola Hofmanova 59
13.Daniela Hantuchova 50
14.Serena Williams 49
15.Anna Chkavetadze 30
16.Shuai Peng 27
17.Nathalie Dechy 25
18.Marion Bartoli 15
19.Michaella Krajicek 15
20.Lindsay Davenport 12
21.Jelena Dokic 12
22.Justine Henin 12
23.Na Li 12
24.Flavia Pennetta 12

updated after Stanford

updated after San Diego

updated after Los Angeles
there are 2 events left: the Tier I in Toronto and the Tier II in New Haven.

Updated after Toronto
only the top 6 can win now...

updated after New Haven
1st place Brie Whitehead
2nd place Jelena Jankovic
3rd place Venus Williams

congrats on earning extra $$$$$$$$$$$$$