Zuzana Ondraskova defeated Jelena Kostanic Tosic 7-5 7-5 in the Prague round of 16 on clay. The upset overturned the form book — Jelena Kostanic Tosic came in leading the head-to-head 2–0. Zuzana Ondraskova claimed a first win over Jelena Kostanic Tosic in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-07-07 | Zagreb 2 75K | R32 | clay | Jelena Kostanic Tosic | 7-5 5-7 6-0 |
| 2006-01-16 | Australian Open | R64 | hard | Jelena Kostanic Tosic | 6-2 6-1 |
Averages over each player's completed matches in the selected window (37 vs 37). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About