Libuse Prusova defeated Mariana Diaz Oliva 6-1 4-6 6-2 in the Bol quarter-final on clay. The upset overturned the form book — Mariana Diaz Oliva came in leading the head-to-head 1–0, defending last year's final. Libuse Prusova claimed a first win over Mariana Diaz Oliva in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-08-11 | Bratislava 75K | R16 | clay | Mariana Diaz Oliva | 6-1 6-2 |
Averages over each player's completed matches in the selected window (3 vs 22). 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. About