Isabella Robbiani defeated Fernanda Hermenegildo 6-0 7-6 in the Ribeirao Preto 10K round of 32 on clay. The upset overturned the form book — Fernanda Hermenegildo came in leading the head-to-head 1–0. Isabella Robbiani claimed a first win over Fernanda Hermenegildo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-24 | Barueri 10K | R32 | hard | Fernanda Hermenegildo | 6-3 6-1 |