Katarzyna Piter defeated Romy Koelzer 7-5 2-6 6-2 in the W25 Darmstadt round of 32 on clay. The result followed the form book — Katarzyna Piter came in leading the head-to-head 1–0. Katarzyna Piter extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-21 | W25 Braunschweig | R32 | clay | Katarzyna Piter | 6-4 4-6 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.