Agustin Calleri defeated Gaston Gaudio 7-5 6-0 in the Kitzbuhel quarter-final on clay. The upset overturned the form book — Gaston Gaudio came in leading the head-to-head 2–1, defending the title, but Agustin Calleri had been the form player, winning 2 of their last 7 on clay. Agustin Calleri narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-05-05 | Rome Masters | R32 | clay | Gaston Gaudio | 6-4 6-2 |
| 2003-02-24 | Acapulco | R16 | hard | Agustin Calleri | 7-6(5) 7-6(5) |
| 2002-04-29 | Mallorca | SF | grass | Gaston Gaudio | 4-6 6-3 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (152 vs 74). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About