Juan Carlos Ferrero defeated Agustin Calleri 6-3 6-4 in the Buenos Aires round of 32 on clay. The upset overturned the form book — Agustin Calleri came in defending last year's quarter-final. Juan Carlos Ferrero extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-09-19 | Davis Cup WG SF: ESP vs ARG | RR | clay | Agustin Calleri | 6-4 7-5 6-1 |
| 2003-04-28 | Valencia | QF | hard | Juan Carlos Ferrero | 6-3 6-4 |
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 (146 vs 12). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About