Mathias Huning defeated Egberto Caldas 6-2 6-3 in the Brazil 2 Masters 4 round of 32 on clay. The upset overturned the form book — Egberto Caldas came in leading the head-to-head 1–0. Mathias Huning claimed a first win over Egberto Caldas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-05-11 | Brazil 3 Masters 2 | R32 | clay | Egberto Caldas | 7-6 6-1 |