Agustin Mundina defeated Gustavo Jorge Re 7-6 6-3 in the Bolivia Chile Masters 2 round of 16 on clay. The upset overturned the form book — Gustavo Jorge Re came in leading the head-to-head 1–0. Agustin Mundina claimed a first win over Gustavo Jorge Re in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-09-02 | Brazil 6 Masters 1 | QF | clay | Gustavo Jorge Re | 6-2 6-1 |