Paris - French Open runner-up Lucie Safarova has climbed up to a career-best sixth place in the WTA world rankings.
Croat Ana Konjuh was the biggest climber, going up 32 spots to 55th after her win at the WTA tournament in Nottingham.
WTA Top 20
1. Serena Williams (USA) 11,291 points
2. Petra Kvitova (CZE) 6,870
3. Simona Halep (ROM) 6,130
4. Maria Sharapova (RUS) 5,950
5. Caroline Wozniacki (DEN) 5,000
6. Lucie Safarova (CZE) 4,055 (+1)
7. Ana Ivanovic (SRB) 3,895 (-1)
8. Ekaterina Makarova (RUS) 3,620 (+1)
9. Carla Suarez (ESP) 3,345
10. Angelique Kerber (GER) 3,120
11. Eugenie Bouchard (CAN) 3,118
12. Karolina Pliskova (CZE) 3,010
13. Agnieszka Radwanska (POL) 2,815
14. Andrea Petkovic (GER) 2,660
15. Timea Bacsinszky (SUI) 2,628
16. Venus Williams (USA) 2,586
17. Elina Svitolina (UKR) 2,405
18. Madison Keys (USA) 2,395
19. Sabine Lisicki (GER) 2,165
20. Sara Errani (ITA) 2,140
Other:
123. Chanelle Scheepers (RSA) 457