The 28-year-old jumped four places after beating Belarus' Victoria Azarenka in Qatar on Saturday. She is now placed at a career-best 11th.
The list continues to be dominated by Serena Williams, leading the pack in front of Russia's Maria Sharapova and Romania's Simona Halep.
1. Serena Williams (USA) 9,592
2. Maria Sharapova (RUS) 8,215
3. Simona Halep (ROM) 6,571
4. Petra Kvitova (CZE) 6,395
5. Caroline Wozniacki (DEN) 4,730
6. Ana Ivanovic (SRB) 4,425
7. Eugénie Bouchard (CAN) 4,306
8. Agnieszka Radwanska (POL) 4,065
9. Ekaterina Makarova (RUS) 3,420
10. Andrea Petkovic (GER) 3,190
11. Lucie Safarova (CZE) 2,995 (+4)
12. Sara Errani (ITA) 2,670
13. Carla Suarez Navarro (ESP) 2,660 (+1)
14. Angelique Kerber (GER) 2,650 (-3)
15. Karolina Pliskova (CZE) 2,620 (-2)
16. Flavia Pennetta (ITA) 2,560
17. Venus Williams (USA) 2,550
18. Madison Keys (USA) 2,100 (+1)
19. Shuai Peng (CHN) 2,080 (+2)
20. Barbora Zahlavova Strycova 2,055 (+2)