Valentin Florez defeated Guido Pella 6-4 6-2 in the Brazil F42 round of 16 on clay. The upset overturned the form book — Guido Pella came in leading the head-to-head 2–0, but Valentin Florez had been the form player, winning 2 of their last 4 on clay. Valentin Florez claimed a first win over Guido Pella in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-13 | Argentina F7 | R32 | clay | Guido Pella | 7-6(3) 7-5 |
| 2011-05-16 | Paraguay F1 | R32 | clay | Guido Pella | 0-6 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.