Nadia Kulbiej defeated Madelief Hageman 6-4 7-6 in the W15 Kotka semi-final on clay. The result followed the form book — Nadia Kulbiej came in leading the head-to-head 1–0. Nadia Kulbiej extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-05-17 | W15 Kotka 1 | SF | clay | Nadia Kulbiej | 6-4 7-6(8) |
Averages over each player's completed matches in the selected window (19 vs 137). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About