Petra Mandula defeated Svetlana Krivencheva 6-4 6-1 in the Puchheim 25K qualifying round on clay. The upset overturned the form book — Svetlana Krivencheva came in leading the head-to-head 1–0, but Petra Mandula had been the form player, winning 3 of their last 4 on clay. Petra Mandula claimed a first win over Svetlana Krivencheva in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-03 | Athens 25K | QF | clay | Svetlana Krivencheva | 6-2 2-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.