01/By surface
each with its own count, at equal weight
Hard
3-0
E. leads 3-0 in 3 meetings on hard
Clay
2-0
E. leads 2-0 in 2 meetings on clay
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, E. first |
|---|---|---|---|---|---|---|
| May 10, 2024 | Internazionali BNL d'ItaliaWTA1000 | clay | 2nd round | Mertens E. | 6-1, 6-4 | 30 v 36 |
| Apr 23, 2021 | Istanbul CupWTA250 | clay | quarterfinal | Mertens E. | 6-4, 6-4 | 17 v 69 |
| Sep 23, 2019 | Wuhan OpenPremier | hard | 1st round | Mertens E. | 6-4, 6-0 | 24 v 41 |
| Feb 12, 2019 | Qatar Total OpenPremier | hard | 1st round | Mertens E. | 6-4, 6-2 | 21 v 44 |
| Jan 9, 2019 | Sydney InternationalPremier | hard | 1st round | Mertens E. | 7-6, 2-6, 6-2 | 12 v 36 |
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 Siniakova K. each carry the table against every opponent faced.