Gustavo Jorge Re defeated Mauricio Aquino 6-4 6-7 6-3 in the Brazil 5 Masters 3 round of 16 on clay. The upset overturned the form book — Mauricio Aquino came in leading the head-to-head 1–0. Gustavo Jorge Re claimed a first win over Mauricio Aquino in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-09-02 | Brazil 6 Masters 3 | R32 | clay | Mauricio Aquino | 0-0 0-0 0-0 |