Juan Pablo Brzezicki defeated Antonio Pastorino 6-3 6-3 in the Argentina F9 semi-final on clay. The upset overturned the form book — Antonio Pastorino came in leading the head-to-head 2–0. Juan Pablo Brzezicki claimed a first win over Antonio Pastorino in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-04-28 | Argentina 1 | F | clay | Antonio Pastorino | 0-6 6-4 5-1 |
| 2003-04-28 | Argentina 3 | SF | clay | Antonio Pastorino | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.