Guillermo Duran defeated Rodrigo Perez 6-4 6-3 in the Argentina F8 round of 16 on clay. The upset overturned the form book — Rodrigo Perez came in leading the head-to-head 1–0. Guillermo Duran claimed a first win over Rodrigo Perez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-22 | Argentina F10 | QF | clay | Rodrigo Perez | 6-3 3-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.