01/By surface
each with its own count, at equal weight
Hard
5-0
I. leads 5-0 in 5 meetings on hard
Clay
1-0
I. leads 1-0 in 1 meeting on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
6 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, I. first |
|---|---|---|---|---|---|---|
| Sep 18, 2025 | Korea OpenWTA500 | hard | 2nd round | Swiatek I. | 6-3, 6-2 | 2 v 66 |
| Aug 13, 2025 | Western & Southern Financial Group Women's OpenWTA1000 | hard | 4th round | Swiatek I. | 6-4, 6-3 | 3 v 136 |
| Apr 27, 2024 | Mutua Madrid OpenWTA1000 | clay | 3rd round | Swiatek I. | 6-1, 6-1 | 1 v 30 |
| Feb 12, 2024 | Qatar OpenWTA1000 | hard | 2nd round | Swiatek I. | 6-1, 6-1 | 1 v 22 |
| Mar 16, 2023 | BNP Paribas OpenWTA1000 | hard | quarterfinal | Swiatek I. | 6-2, 6-3 | 1 v 83 |
| Jan 24, 2022 | Australian OpenGrand Slam | hard | 4th round | Swiatek I. | 5-7, 6-3, 6-3 | 9 v 38 |
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. Swiatek I. and Cirstea S. each carry the table against every opponent faced.