| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-09-28 | Wuhan | R64 | hard | Venus Williams | 6-1 7-6(4) |
| 2015-02-23 | Doha | QF | hard | Venus Williams | 6-4 1-6 6-3 |
| 2015-01-19 | Australian Open | R16 | hard | Venus Williams | 6-3 2-6 6-1 |
| 2012-05-28 | Roland Garros | R64 | clay | Agnieszka Radwanska | 6-2 6-3 |
| 2012-03-19 | Miami | QF | hard | Agnieszka Radwanska | 6-4 6-1 |
| 2010-03-22 | Miami | QF | hard | Venus Williams | 6-3 6-1 |
| 2009-06-22 | Wimbledon | QF | grass | Venus Williams | 6-1 6-2 |
| 2009-05-04 | Rome | QF | clay | Venus Williams | 6-1 6-2 |
| 2009-03-23 | Miami | R16 | hard | Venus Williams | 4-6 6-1 6-4 |
| 2008-08-25 | US Open | R16 | hard | Venus Williams | 6-1 6-3 |
| 2006-09-25 | Luxembourg | R16 | hard | Agnieszka Radwanska | 6-3 6-0 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.