Anca Barna defeated Jelena Kostanic Tosic 4-6 6-2 6-2 in the Pattaya quarter-final on hard. The upset overturned the form book — Jelena Kostanic Tosic came in leading the head-to-head 3–1, but Anca Barna had been the form player, winning 3 of their last 5 on hard. Anca Barna narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-26 | San Diego | R64 | hard | Jelena Kostanic Tosic | 6-2 6-1 |
| 2004-06-14 | s Hertogenbosch | R32 | grass | Anca Barna | 6-4 3-6 6-2 |
| 1999-08-16 | Bronx 50K | R32 | hard | Jelena Kostanic Tosic | 1-6 6-4 6-4 |
| 1998-09-14 | Otocec 25K | F | clay | Jelena Kostanic Tosic | 6-4 7-6 |
Averages over each player's completed matches in the selected window (9 vs 47). 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. About