01/By surface
each with its own count, at equal weight
Hard
5-1
S. leads 5-1 in 6 meetings on hard
Clay
1-0
S. leads 1-0 in 1 meeting 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, S. first |
|---|---|---|---|---|---|---|
| Mar 20, 2024 | Miami OpenWTA1000 | hard | 1st round | Stephens S. | 6-2, 6-3 | 41 v 342 |
| Sep 3, 2021 | US OpenGrand Slam | hard | 3rd round | Kerber A. | 5-7, 6-2, 6-3 | 66 v 17 |
| Oct 26, 2018 | BNP Paribas WTA FinalsTour Championships | hard | round robin | Stephens S. | 6-3, 6-3 | 6 v 2 |
| Mar 27, 2018 | Sony Ericsson OpenPremier | hard | quarterfinal | Stephens S. | 6-1, 6-2 | 12 v 10 |
| Aug 10, 2017 | Rogers CupPremier | hard | 3rd round | Stephens S. | 6-2, 6-2 | 934 v 3 |
| Apr 9, 2016 | Family Circle CupPremier | clay | semifinal | Stephens S.ret. | 6-1, 3-0 | 25 v 2 |
| Mar 13, 2015 | BNP Paribas OpenPremier | hard | 2nd round | Stephens S. | 7-6, 6-2 | 42 v 14 |
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. Stephens S. and Kerber A. each carry the table against every opponent faced.