Barbara Castro defeated Maria Eugenia Rojas 6-4 6-3 in the Campinas 25K round of 32 on clay. The upset overturned the form book — Maria Eugenia Rojas came in leading the head-to-head 1–0. Barbara Castro claimed a first win over Maria Eugenia Rojas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-09-15 | Santiago 10K | R32 | clay | Maria Eugenia Rojas | 6-7 6-1 6-1 |