Ana Paula Zannoni defeated Miriam Dagostini 6-3 6-0 in the Mogi Das Cruzes 25K round of 32 on clay. The upset overturned the form book — Miriam Dagostini came in leading the head-to-head 1–0, but Ana Paula Zannoni had been the form player, winning 1 of their last 5 on clay. Ana Paula Zannoni claimed a first win over Miriam Dagostini in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-10-20 | Novo Hamburgo 10K | R16 | hard | Miriam Dagostini | 6-3 6-3 |