Juan Robinson Gamonal defeated Miguel Miranda 6-1 6-1 in the Chile 1 Masters 4 round of 32 on clay. The upset overturned the form book — Miguel Miranda came in leading the head-to-head 1–0. Juan Robinson Gamonal claimed a first win over Miguel Miranda in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-04-05 | Brazil 1 Masters 3 | R32 | clay | Miguel Miranda | 5-1 |