1. Serena Williams (US)
2. Angelique Kerber (Ger)
3. Karolina Pliskova (Cze)
4. Simona Halep (Rom)
5. Dominika Cibulkova (Svk)
6. Agnieszka Radwanska (Pol)
7. Garbine Muguruza (Spa)
8. Svetlana Kuznetsova (Rus)
9. Madison Keys (US)
10. Johanna Konta (GB)
11. Venus Williams (US)
12. Petra Kvitova (Cze)
13. Elina Svitolina (Ukr)
14. Carla Suarez Navarro (Spa)
15. Timea Bacsinszky (Swi)
16. Elena Vesnina (Rus)
17. Barbora Strycova (Cze)
18. Caroline Wozniacki (Den)
19. Victoria Azarenka (Blr)
20. Coco Vandeweghe (US)
Other Britons in top 300:
73. Heather Watson
98. Naomi Broady
158. Tara Moore
212. Laura Robson
286. Amanda Carreras
287. Katy Dunne
WTA singles rankings as of 30 January 2017