
Zdenek Kolar defeated Andrea Vavassori 6-2 4-6 7-6 in the Umag qualifying round 1 on clay. The upset overturned the form book — Andrea Vavassori came in leading the head-to-head 2–1. Zdenek Kolar narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-07-22 | Umag | Q16 | clay | Zdenek Kolar | 6-2 4-6 7-6(6) |
| 2022-06-27 | Wimbledon | Q3 | grass | Andrea Vavassori | 6-7 7-6 6-1 7-6 |
| 2022-06-23 | Wimbledon | Q32 | grass | Andrea Vavassori | 6-7(5) 7-6(4) 6-1 7-6(5) |
Averages over each player's completed matches in the selected window (199 vs 109). 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