Sharapova lost the final 6-1, 6-4 to Belarus' Victoria Azarenka, who moved to her highest ever ranking of sixth.
April 4 rankings
1. Caroline Wozniacki (DEN) 9740 pts
2. Kim Clijsters (BEL) 8145
3. Vera Zvonareva (RUS) 7815
4. Francesca Schiavone (ITA) 5171
5. Samantha Stosur (AUS) 4606
6. Victoria Azarenka (BLR) 4470 (+2)
7. Na Li (CHN) 4300 (-1)
8. Jelena Jankovic (SRB) 4155 (-1)
9. Maria Sharapova (RUS) 3726 (+4)
10. Serena Williams (USA) 3035 (+2)
11. Shahar Peer (ISR) 3030
12. Marion Bartoli (FRA) 2925 (-2)
13. Agnieszka Radwanska (POL) 2860 (+1)
14. Svetlana Kuznetsova (RUS) 2800 (+1)
15. Venus Williams (USA) 2765 (-6)
16. Kaia Kanepi (EST) 2760
17. Ana Ivanovic (SRB) 2750 (+2)
18. Petra Kvitova (CZE) 2743
19. Andrea Petkovic (GER) 2735 (+4)
