Ranking
| 12 jan 2009 | ||
| 1 | Jelena Jankovic | 9200 |
| 2 | Serena Williams | 7732 |
| 3 | Dinara Safina | 7554 |
| 4 | Elena Dementieva | 7326 |
| 5 | Ana Ivanovic | 6732 |
| 6 | Venus Williams | 6544 |
| 7 | Vera Zvonareva | 5744 |
| 8 | Svetlana Kuznetsova | 5072 |
| 9 | Maria Sharapova | 5030 |
| 10 | Agnieszka Radwanska | 4472 |
| 8 dec 2008 | ||
| 1 | Jelena Jankovic | 4710 |
| 2 | Serena Williams | 3866 |
| 3 | Dinara Safina | 3817 |
| 4 | Elena Dementieva | 3663 |
| 5 | Ana Ivanovic | 3457 |
| 6 | Venus Williams | 3272 |
| 7 | Vera Zvonareva | 2952 |
| 8 | Svetlana Kuznetsova | 2726 |
| 9 | Maria Sharapova | 2515 |
| 10 | Agnieszka Radwanska | 2286 |
| 1 dec 2008 | ||
| 1 | Jelena Jankovic | 4710 |
| 2 | Serena Williams | 3866 |
| 3 | Dinara Safina | 3817 |
| 4 | Elena Dementieva | 3663 |
| 5 | Ana Ivanovic | 3457 |
| 6 | Venus Williams | 3272 |
| 7 | Vera Zvonareva | 2952 |
| 8 | Svetlana Kuznetsova | 2726 |
| 9 | Maria Sharapova | 2515 |
| 10 | Agnieszka Radwanska | 2286 |
| 24 nov 2008 | ||
| 1 | Jelena Jankovic | 4710 |
| 2 | Serena Williams | 3866 |
| 3 | Dinara Safina | 3817 |
| 4 | Elena Dementieva | 3663 |
| 5 | Ana Ivanovic | 3457 |
| 6 | Venus Williams | 3272 |
| 7 | Vera Zvonareva | 2952 |
| 8 | Svetlana Kuznetsova | 2726 |
| 9 | Maria Sharapova | 2515 |
| 10 | Agnieszka Radwanska | 2286 |
| 17 nov 2008 | ||
| 1 | Jelena Jankovic | 4710 |
| 2 | Serena Williams | 3866 |
| 3 | Dinara Safina | 3817 |
| 4 | Elena Dementieva | 3663 |
| 5 | Ana Ivanovic | 3457 |
| 6 | Venus Williams | 3272 |
| 7 | Vera Zvonareva | 2952 |
| 8 | Svetlana Kuznetsova | 2726 |
| 9 | Maria Sharapova | 2515 |
| 10 | Agnieszka Radwanska | 2286 |
| 10 nov 2008 | ||
| 1 | Jelena Jankovic | 4710 |
| 2 | Serena Williams | 3866 |
| 3 | Dinara Safina | 3817 |
| 4 | Elena Dementieva | 3663 |
| 5 | Ana Ivanovic | 3457 |
| 6 | Venus Williams | 3272 |
| 7 | Vera Zvonareva | 2952 |
| 8 | Svetlana Kuznetsova | 2726 |
| 9 | Maria Sharapova | 2515 |
| 10 | Agnieszka Radwanska | 2286 |
| 3 Nov 2008 | ||
| 1 | Jelena Janković | 4555 |
| 2 | Dinara Safina | 3752 |
| 3 | Serena Williams | 3716 |
| 4 | Ana Ivanovic | 3687 |
| 5 | Elena Dementieva | 3399 |
| 6 | Maria Sharapova | 3040 |
| 7 | Svetlana Kuznetsova | 2726 |
| 8 | Venus Williams | 2522 |
| 9 | Vera Zvonareva | 2497 |
| 10 | Agnieszka Radwanska | 2141 |
| 27 Oct 2008 | ||
| 1 | Jelena Janković | 4555 |
| 2 | Dinara Safina | 3782 |
| 3 | Serena Williams | 3716 |
| 4 | Ana Ivanovic | 3687 |
| 5 | Elena Dementieva | 3399 |
| 6 | Maria Sharapova | 3040 |
| 7 | Svetlana Kuznetsova | 2726 |
| 8 | Venus Williams | 2522 |
| 9 | Vera Zvonareva | 2497 |
| 10 | Agnieszka Radwanska | 2141 |
| 20 Oct 2008 | ||
| 1 | Jelena Janković | 4555 |
| 2 | Dinara Safina | 3782 |
| 3 | Serena Williams | 3716 |
| 4 | Ana Ivanovic | 3413 |
| 5 | Elena Dementieva | 3235 |
| 6 | Maria Sharapova | 3040 |
| 7 | Svetlana Kuznetsova | 2726 |
| 8 | Venus Williams | 2522 |
| 9 | Vera Zvonareva | 2372 |
| 10 | Agnieszka Radwanska | 2051 |
| 13 Oct 2008 | ||
| 1 | Jelena Janković | 4555 |
| 2 | Dinara Safina | 3782 |
| 3 | Serena Williams | 3716 |
| 4 | Ana Ivanovic | 3288 |
| 5 | Elena Dementieva | 3235 |
| 6 | Maria Sharapova | 3040 |
| 7 | Svetlana Kuznetsova | 2726 |
| 8 | Vera Zvonareva | 2372 |
| 9 | Venus Williams | 2247 |
| 10 | Agnieszka Radwanska | 2051 |