Denisa Chladkova defeated Mariana Diaz Oliva 7-6 6-0 in the Prague round of 32 on clay. The upset overturned the form book — Mariana Diaz Oliva came in leading the head-to-head 1–0, defending last year's round of 16. Denisa Chladkova 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 |
|---|---|---|---|---|---|
| 1998-04-27 | Bol | R32 | clay | Mariana Diaz Oliva | 6-3 7-6 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (13 vs 22). ATP, WTA & Challenger.