01/By surface
each with its own count, at equal weight
Hard
0-2
M. leads 2-0 in 2 meetings on hard
Clay
Never on clay
no meeting on this surface
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, K. first |
|---|---|---|---|---|---|---|
| Aug 4, 2026 | Canadian OpenWTA1000 | hard | 2nd round | Kostyuk M. | 7-6, 6-0 | 231 v 11 |
| Aug 22, 2021 | Chicago Women's OpeenWTA250 | hard | 1st round | Kostyuk M. | 6-0, 6-3 | 312 v 56 |
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. Sebov K. and Kostyuk M. each carry the table against every opponent faced.