Geraldine Aizenberg defeated Eugenia Maia 6-3 6-2 in the Sao Paulo 10K qualifying round on clay. Geraldine Aizenberg extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-06 | Buenos Aires 10K | R32 | clay | Geraldine Aizenberg | 6-0 7-5 |
| 1996-09-16 | Asuncion 10K | QF | clay | Eugenia Maia | 2-6 6-1 6-3 |