Patty Van Acker defeated Alena Nesticka 6-7 7-6 6-0 in the Rogaska Slatina 25K round of 32 on carpet. The upset overturned the form book — Alena Nesticka came in leading the head-to-head 1–0. Patty Van Acker claimed a first win over Alena Nesticka in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-12-13 | Pruhonice 25K | R32 | hard | Alena Nesticka | 7-6 6-2 |