Women's tennis rankings

WTA singles rankings as of 14 January, 2019

1. Simona Halep (Rom)

2. Angelique Kerber (Ger)

3. Caroline Wozniacki (Den)

4. Naomi Osaka (Jpn)

5. Sloane Stephens (US)

6. Petra Kvitova (Cze)

7. Elina Svitolina (Ukr)

8. Karolina Pliskova (Cze)

9. Kiki Bertens (Ned)

10. Daria Kasatkina (Rus)

11. Aryna Sabalenka (Blr)

12. Anastasija Sevastova (Lat)

13. Julia Goerges (Ger)

14. Elise Mertens (Bel)

15. Ashleigh Barty (Aus)

16. Serena Williams (US)

17. Madison Keys (US)

18. Garbine Muguruza (Spa)

19. Caroline Garcia (Fra)

20. Anett Kontaveit (Est)

Britons in top 200:

38. Johanna Konta

97. Katie Boulter

108. Heather Watson

131. Harriet Dart

175. Katie Swan

182. Gabriella Taylor