Achille Margotto defeated Antonio Prieto 7-5 6-0 in the Brazil 5 Masters 1 round of 16 on clay. The result followed the form book — Achille Margotto came in leading the head-to-head 1–0. Achille Margotto extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-11-22 | Brazil 5 Masters 3 | QF | clay | Achille Margotto | 6-1 6-4 |