Gabriela Horackova defeated Romy Koelzer 6-3 6-4 in the W25 Brno round of 32 on clay. The upset overturned the form book — Romy Koelzer came in leading the head-to-head 1–0. Gabriela Horackova claimed a first win over Romy Koelzer in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-12 | W25+H Leipzig | Q32 | clay | Romy Koelzer | 6-3 3-6 10-5 |