Zuzana Valekova defeated Jana Lubasova 6-1 6-3 in the Stupava 10K qualifying round on hard. The upset overturned the form book — Jana Lubasova came in leading the head-to-head 1–0. Zuzana Valekova claimed a first win over Jana Lubasova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-16 | Valasske Mezirici 10K | R32 | clay | Jana Lubasova | 6-2 6-4 |