Roberta Vinci defeated Zuzana Ondraskova 6-4 6-4 in the Portoroz round of 16 on hard. The upset overturned the form book — Zuzana Ondraskova came in leading the head-to-head 4–1. Roberta Vinci narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-07-05 | Budapest | R16 | clay | Zuzana Ondraskova | 6-4 6-0 |
| 2005-04-04 | Dinan 75K | F | clay | Roberta Vinci | 7-5 7-5 |
| 2004-02-16 | Antwerp | Q16 | hard | Zuzana Ondraskova | 6-1 6-4 |
| 2003-04-07 | Dinan 50K | QF | clay | Zuzana Ondraskova | 6-4 4-6 6-2 |
| 2003-02-24 | Ostrava 25K | QF | hard | Zuzana Ondraskova | 7-5 7-5 |
Averages over each player's completed matches in the selected window (200 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