01/By surface
each with its own count, at equal weight
Hard
0-1
N. leads 1-0 in 1 meeting on hard
Clay
0-1
N. 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, M. first |
|---|---|---|---|---|---|---|
| May 9, 2024 | Internazionali BNL d'ItaliaWTA1000 | clay | 2nd round | Osaka N. | 6-3, 6-2 | 20 v 173 |
| Sep 4, 2020 | US OpenGrand Slam | hard | 3rd round | Osaka N. | 6-3, 6-7, 6-2 | 137 v 9 |
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. Kostyuk M. and Osaka N. each carry the table against every opponent faced.