I. Swiatek leads the head-to-head 2-1 since 2018 against M. Kostyuk, over 3 matches.
| Surface | M. Kostyuk | I. Swiatek |
|---|---|---|
| Clay | 1 | 0 |
| Hard | 0 | 2 |
| Date | Winner | Score | Event |
|---|---|---|---|
| May 31, 2026 | M. Kostyuk | 2 - 0 | French Open · 1/8-finals · clay |
| Aug. 16, 2024 | I. Swiatek | 2 - 0 | WTA Cincinnati · 1/8-finals · hard |
| March 16, 2024 | I. Swiatek | 2 - 0 | WTA Indian Wells · Semi-finals · hard |