Women's tennis rankings

WTA singles rankings as of 27 April 2015

1. Serena Williams (US)

2. Simona Halep (Rom)

3. Maria Sharapova (Rus)

4. Petra Kvitova (Cze)

5. Caroline Wozniacki (Den)

6. Eugenie Bouchard (Can)

7. Ana Ivanovic (Ser)

8. Ekaterina Makarova (Rus)

9. Agnieszka Radwanska (Pol)

10. Carla Suarez Navarro (Spa)

11. Andrea Petkovic (Ger)

12. Angelique Kerber (Ger)

13. Lucie Safarova (Cze)

14. Karolina Pliskova (Cze)

15. Sara Errani (Ita)

16. Venus Williams (US)

17. Madison Keys (US)

18. Jelena Jankovic (Ser)

19. Sabine Lisicki (Ger)

20. Garbine Muguruza (Spa)

Britons in top 300:

40. Heather Watson

138. Johanna Konta

161. Naomi Broady

278. Katy Dunne