Fernanda Hermenegildo defeated Maria Jose Argeri 6-4 6-3 in the Asuncion 10K round of 16 on clay. The upset overturned the form book — Maria Jose Argeri came in leading the head-to-head 2–0. Fernanda Hermenegildo claimed a first win over Maria Jose Argeri in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-25 | Florianopolis 1 10K | R16 | clay | Maria Jose Argeri | 7-5 6-0 |
| 2004-09-06 | Santiago 10K | R32 | clay | Maria Jose Argeri | 6-3 6-4 |