Williams has 8,475 points as she leads the way from Serbia's Jelena Jankovic (5,900) and her sister Venus Williams (5,606), who changed places with Denmark's Caroline Wozniacki (5,555).
WTA top 10 as of July 12 (previous ranking in parenthesis):
1. (1) Serena Williams, United States, 8,475
2. (2) Jelena Jankovic, Serbia, 5,900
3. (4) Venus Williams, United States, 5,606
4. (3) Caroline Wozniacki, Denmark, 5,555
5. (5) Samantha Stosur, Australia, 4,890
6. (6) Elena Dementieva, Russia, 4,670
7. (7) Kim Clijsters, Belgium, 4,510
8. (8) Francesca Schiavone, Italy, 4,425
9. (9) Vera Zvonareva, Russia, 3,965
10. (10) Li Na, China, 3,756
Published 12 July 2010, 14:14 IST