Marketa Kochta defeated Edith Nunes Bersot 6-3 0-6 7-6 in the Sofia 25K qualifying round on clay. The upset overturned the form book — Edith Nunes Bersot came in leading the head-to-head 1–0, but Marketa Kochta had been the form player, winning 2 of their last 4 on clay. Marketa Kochta claimed a first win over Edith Nunes Bersot in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-09-02 | Spoleto 25K | R16 | clay | Edith Nunes Bersot | 7-5 0-6 6-0 |