Juan Vazquez Valenzuela defeated Maximiliano Estevez 6-0 6-4 in the Argentina F27 round of 16 on clay. The upset overturned the form book — Maximiliano Estevez came in leading the head-to-head 3–0, but Juan Vazquez Valenzuela had been the form player, winning 3 of their last 7 on clay. Juan Vazquez Valenzuela claimed a first win over Maximiliano Estevez in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-14 | Venezuela F2 | QF | hard | Maximiliano Estevez | 4-6 7-6(3) 6-3 |
| 2012-05-07 | Venezuela F1 | R16 | hard | Maximiliano Estevez | 6-4 6-2 |
| 2011-04-18 | Argentina F2 | R32 | clay | Maximiliano Estevez | 6-7(3) 7-6(6) 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.