Stefanie Haidner defeated Ilona Poljakova 6-2 6-4 in the Buchen 10K round of 16 on carpet. The upset overturned the form book — Ilona Poljakova came in leading the head-to-head 1–0. Stefanie Haidner claimed a first win over Ilona Poljakova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-09-21 | Lecce 10K | R32 | clay | Ilona Poljakova | 6-2 6-2 |