01/By surface
each with its own count, at equal weight
Hard
1-0
S. leads 1-0 in 1 meeting on hard
Clay
Never on clay
no meeting on this surface
Grass
1-0
S. leads 1-0 in 1 meeting on grass
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, S. first |
|---|---|---|---|---|---|---|
| Jul 2, 2026 | WimbledonGrand Slam | grass | 2nd round | Cirstea S. | 6-3, 6-4 | 18 v 72 |
| Mar 9, 2023 | BNP Paribas OpenWTA1000 | hard | 1st round | Cirstea S. | 6-3, 6-2 | 83 v 115 |
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. Cirstea S. and Birrell K. each carry the table against every opponent faced.