| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-08-28 | US Open | R32 | hard | Coco Vandeweghe | 7-5 4-6 6-4 |
| 2017-08-07 | Toronto | R64 | hard | Agnieszka Radwanska | 6-3 6-2 |
| 2016-06-13 | Birmingham | R32 | grass | Coco Vandeweghe | 7-5 4-6 6-3 |
| 2015-10-05 | Beijing | R64 | hard | Agnieszka Radwanska | 6-3 RET |
| 2015-09-21 | Tokyo | R32 | hard | Agnieszka Radwanska | 6-3 6-3 |
| 2015-08-24 | New Haven | R32 | hard | Agnieszka Radwanska | 6-0 6-2 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.