Gaston Naon defeated Federico Garcia Berro 6-2 6-2 in the Argentina 1 Masters 1 round of 32 on clay. The upset overturned the form book — Federico Garcia Berro came in leading the head-to-head 1–0. Gaston Naon claimed a first win over Federico Garcia Berro in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-08-10 | Argentina 2 Masters 4 | R16 | clay | Federico Garcia Berro | 7-5 6-3 |