Gergana Topalova defeated Romy Koelzer 6-4 6-0 in the W15 Heraklion 7 final on clay. The upset overturned the form book — Romy Koelzer came in leading the head-to-head 2–0. Gergana Topalova claimed a first win over Romy Koelzer in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-11-13 | W15 Heraklion 8 | R16 | clay | Romy Koelzer | 6-4 6-4 |
| 2019-10-12 | W15 Antalya 23 | SF | hard | Romy Koelzer | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.