| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-03-04 | Indian Wells | R128 | hard | Venus Williams | 6-4 0-6 6-3 |
| 2014-07-28 | Stanford | QF | hard | Andrea Petkovic | 6-1 3-6 7-5 |
| 2012-10-15 | Luxembourg | SF | hard | Venus Williams | 5-7 6-4 6-4 |
| 2011-01-17 | Australian Open | R32 | hard | Andrea Petkovic | 1-0 RET |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.