Serena dominates WTA rankings

Paris - Serena Williams has bolstered her position atop the WTA world rankings after winning the Australian Open on Saturday.

The 33-year-old American defeated Maria Sharapova in straight sets for her sixth Grand Slam title in Melbourne and 19th in all.

Williams is over 1 500 points clear of the Russian who in turn is well ahead of third placed Simona Halep of Romania.

One of the biggest movers of the week was Serena's older sister Venus. The former world number one reached the last eight in Melbourne for her first Grand Slam quarter-final since 2010.

That hoisted her seven places in the rankings up to just outside the top 10 at 11th.

Surprise Melbourne semi-finalist Madison Keys gained 15 places to break into the top 20 for the first time in her career.

WTA Top 20

1. Serena Williams (USA) 9 776
2. Maria Sharapova (RUS) 8 210
3. Simona Halep (ROM) 6 571
4. Petra Kvitova (CZE) 6 480
5. Caroline Wozniacki (DEN) 4 565
6. Ana Ivanovic (SRB) 4 425
7. Eugnie Bouchard (CAN) 4 365
8. Agnieszka Radwanska (POL) 4 270
9. Ekaterina Makarova (RUS) 3 285
10. Angelique Kerber (GER) 3 130
11. Venus Williams (USA) 2 790
12. Andrea Petkovic (GER) 2 735
13. Sara Errani (ITA) 2 551
14. Flavia Pennetta (ITA) 2 441
15. Lucie Safarova (CZE) 2 425
16. Jelena Jankovic (SER) 2 360
17. Carla Suarez Navarro (ESP) 2 295
18. Dominika Cibulkova (SLQ) 2 137
19. Aliz Cornet (FRA) 2 125
20. Madison Keys (USA) 2 100