By surface
| Surface | Madison Keys | Marta Kostyuk |
|---|---|---|
| Grass | 2 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2024-07-01 | WTA | Wimbledon | Round of 32 | Grass | Madison Keys | 6-4 | 6-3 | |||
| 2023-07-03 | WTA | Wimbledon | Round of 32 | Grass | Madison Keys | 6-4 | 6-1 |