01/By surface
each with its own count, at equal weight
Hard
0-1
I. leads 1-0 in 1 meeting on hard
Clay
0-1
I. leads 1-0 in 1 meeting on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, E. first |
|---|---|---|---|---|---|---|
| Mar 23, 2025 | Miami OpenWTA1000 | hard | 3rd round | Swiatek I. | 7-6, 6-1 | 28 v 2 |
| Apr 18, 2024 | Porsche Tennis Grand PrixWTA500 | clay | 2nd round | Swiatek I. | 6-3, 6-4 | 30 v 1 |
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. Mertens E. and Swiatek I. each carry the table against every opponent faced.