01/By surface
each with its own count, at equal weight
Hard
0-3
S. leads 3-0 in 3 meetings on hard
Clay
2-2
Level 2-2 in 4 meetings on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
7 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, M. first |
|---|---|---|---|---|---|---|
| Aug 30, 2021 | US OpenGrand Slam | hard | 1st round | Stephens S. | 6-3, 1-6, 7-6 | 42 v 66 |
| May 11, 2021 | Internazionali BNL d'ItaliaWTA1000 | clay | 1st round | Keys M. | 4-6, 6-2, 7-5 | 23 v 65 |
| Apr 8, 2021 | Volvo Car OpenWTA500 | clay | 2nd round | Stephens S. | 6-4, 6-4 | 24 v 57 |
| Apr 5, 2019 | Family Circle CupPremier | clay | quarterfinal | Keys M. | 7-6, 4-6, 6-2 | 18 v 8 |
| Jun 7, 2018 | French OpenGrand Slam | clay | semifinal | Stephens S. | 6-4, 6-4 | 13 v 10 |
| Sep 9, 2017 | US OpenGrand Slam | hard | final | Stephens S. | 6-3, 6-0 | 22 v 83 |
| Mar 27, 2015 | Sony Ericsson OpenPremier | hard | 2nd round | Stephens S. | 6-4, 6-2 | 18 v 45 |
A record, never a share of meetings. Main-draw singles since 2013; a meeting ended by retirement is counted with the sets that were played and marked; a walkover is listed and counted in neither column. Keys M. and Stephens S. each carry the table against every opponent faced.