Mauricio Doria Medina defeated Tiago Lopes 6-4 6-1 in the Argentina F8 round of 32 on clay. The upset overturned the form book — Tiago Lopes came in leading the head-to-head 2–0. Mauricio Doria Medina claimed a first win over Tiago Lopes in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-27 | Brazil F12 | R16 | clay | Tiago Lopes | 6-3 6-2 |
| 2009-06-22 | Brazil F8 | R16 | clay | Tiago Lopes | 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.