By surface
| Surface | Elise Mertens | Marta Kostyuk |
|---|---|---|
| Hard | 1 | 2 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2024-08-12 | WTA | Cincinnati | Round of 64 | Hard | Marta Kostyuk | 4-6 | 6-2 | 4-6 | ||
| 2024-01-15 | WTA | Australian Open | Round of 64 | Hard | Marta Kostyuk | 7-5 | 1-6 | 6-76 | ||
| 2022-03-07 | WTA | Indian Wells | Round of 64 | Hard | Elise Mertens | 6-2 | 6-1 |