Antonio Pastorino advanced when Patricio Arquez retired 6-1 4-2 in the Chile 1 3 round of 16. Antonio Pastorino claimed a first win over Patricio Arquez in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-02-17 | Brazil F2 | R32 | hard | Patricio Arquez | 2-6 6-2 6-2 |
| 2002-10-07 | Chile F5 | R16 | clay | Patricio Arquez | 6-7(5) 6-3 6-2 |