4-0
S. leads 4-0, 4 meetings, 2014 to 2021, 1 walkover not counted
01/By surface
each with its own count, at equal weight
Hard
4-0
S. leads 4-0 in 4 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
5 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, S. first |
|---|---|---|---|---|---|---|
| Feb 3, 2021 | Yarra Valley ClassicWTA500 | hard | 3rd round | Williams S. | 6-1, 6-4 | 11 v 137 |
| Sep 30, 2020 | French OpenGrand Slam | clay | 2nd round | Pironkova T.walkover, not counted | no set played | 9 v 157 |
| Sep 9, 2020 | US OpenGrand Slam | hard | quarterfinal | Williams S. | 4-6, 6-3, 6-2 | 8 v unranked |
| Aug 19, 2015 | Western & Southern Financial Group Women's OpenPremier | hard | 2nd round | Williams S. | 7-5, 6-3 | 1 v 42 |
| Sep 30, 2014 | China OpenPremier | hard | 2nd round | Williams S. | 6-2, 6-3 | 1 v 51 |
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. Williams S. and Pironkova T. each carry the table against every opponent faced.