Lubomira Bacheva defeated Patricia Wartusch 7-6 6-2 in the Estoril round of 32 on clay. The upset overturned the form book — Patricia Wartusch came in leading the head-to-head 1–0. Lubomira Bacheva claimed a first win over Patricia Wartusch in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-28 | Vaihingen 25K | SF | clay | Patricia Wartusch | 7-5 6-7 6-1 |
Averages over each player's completed matches in the selected window (1 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About