By surface
| Surface | Marta Kostyuk | Alex Castellanos Munuera |
|---|---|---|
| Hard | 2 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-09-24 | WTA | Beijing | Round of 32 | Hard | Marta Kostyuk | 6-4 | 6-2 | |||
| 2022-10-17 | WTA | Guadalajara 2 | Round of 64 | Hard | Marta Kostyuk | 6-1 | 6-3 |