Diego Alvarez defeated Gaston Arturo Grimolizzi 6-4 6-2 in the Argentina F17 qualifying round on clay. The upset overturned the form book — Gaston Arturo Grimolizzi came in leading the head-to-head 1–0. Diego Alvarez claimed a first win over Gaston Arturo Grimolizzi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-04-23 | Argentina F1 | R16 | clay | Gaston Arturo Grimolizzi | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.