| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-07-29 | San Jose | R32 | hard | Bethanie Mattek Sands | 6-7(4) 6-3 6-1 |
| 2012-08-27 | US Open | R128 | hard | Venus Williams | 6-3 6-1 |
| 2009-08-31 | US Open | R64 | hard | Venus Williams | 6-4 6-2 |
| 2006-06-26 | Wimbledon | R128 | grass | Venus Williams | 6-1 6-0 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.