U.S. Open Series Standings

1. Novak Djokovic, Serbia, 170

2. Sam Querrey, United States, 110

3. Roger Federer, Switzerland, 100

4. Mardy Fish, United States, 75

5. Alexandr Dolgopolov, Ukraine, 70

5. Richard Gasquet, France, 70

5. Tommy Haas, Germany, 70

5. John Isner, United States, 70

5. Andy Roddick, United States, 70

10. Milos Raonic, Canada, 50

1. Li Na, China, 170

2. Petra Kvitova, Czech Republic, 145

3. Serena Williams, United States, 95

4. Dominika Cibulkova, Slovakia, 85

4. Angelique Kerber, Germany, 85

6. Marion Bartoli, France, 75

7. Caroline Wozniacki, Denmark, 60

8. Agnieszka Radwanska, Poland, 50

9. Urszula Radwanska, Poland, 45

9. Lucie Safarova, Czech Republic, 45

9. CoCo Vandeweghe, United States, 45

9. Venus Williams, United States, 45

The U.S. Open Series Bonus Challenge links the performance of the top three men's and women's finishers at Series events to their performance at the US Open. First-place finishers will compete for up to an additional $1 million in bonus prize money. Second-place finishers will compete for up to $500,000 and third-place finishers will play for up to $250,000.

Schedule

Aug. 19-25 - Men: Winston-Salem Open, Winston-Salem, North Carolina; Women: New Haven Open at Yale, New Haven, Connecticut.