| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-03-06 | Indian Wells | R32 | hard | Venus Williams | 6-4 6-2 |
| 2014-08-11 | Cincinnati | R64 | hard | Lucie Safarova | 6-7(2) 6-3 6-4 |
| 2010-01-18 | Australian Open | R128 | hard | Venus Williams | 6-2 6-2 |
| 2009-05-25 | Roland Garros | R64 | clay | Venus Williams | 6-7(5) 6-2 7-5 |
| 2009-05-04 | Rome | R32 | clay | Venus Williams | 6-2 4-6 6-2 |
| 2006-05-15 | Rome | R32 | clay | Venus Williams | 6-1 6-4 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.