Roberto Alvarez defeated Rodrigo Cerdera 6-3 6-2 in the Argentina 3 Masters 4 round of 32 on clay. The upset overturned the form book — Rodrigo Cerdera came in leading the head-to-head 1–0. Roberto Alvarez claimed a first win over Rodrigo Cerdera in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-11-01 | Argentina F4 | SF | clay | Rodrigo Cerdera | 6-2 6-1 |