Eva Birnerova defeated Zsofia Gubacsi 6-3 6-1 in the US Open q64 on hard. The upset overturned the form book — Zsofia Gubacsi came in leading the head-to-head 2–1. Eva Birnerova narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-08 | Jounieh 75K | QF | clay | Zsofia Gubacsi | 7-6(8) 7-6(4) |
| 2005-05-19 | Roland Garros | Q64 | clay | Eva Birnerova | 4-6 6-0 7-5 |
| 2003-09-22 | Biella 50K | R32 | clay | Zsofia Gubacsi | 6-3 2-6 6-4 |
Averages over each player's completed matches in the selected window (56 vs 1). 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. Small sample — read as indicative. About