Frederica Piedade defeated Roxane Vaisemberg 6-2 3-6 6-3 in the Campos do Jordao 25K round of 16 on hard. The upset overturned the form book — Roxane Vaisemberg came in leading the head-to-head 1–0. Frederica Piedade claimed a first win over Roxane Vaisemberg in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-11-26 | Beloura-Sintra 25K | R32 | clay | Roxane Vaisemberg | 6-2 5-7 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.