Roxane Vaisemberg defeated Nathalia Rossi 6-1 6-2 in the Sao Paolo 10K semi-final on clay. The upset overturned the form book — Nathalia Rossi came in leading the head-to-head 1–0, but Roxane Vaisemberg had been the form player, winning 5 of their last 7 on clay. Roxane Vaisemberg claimed a first win over Nathalia Rossi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-31 | Sao Paolo 10K | F | clay | Nathalia Rossi | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.