Gabriel Alejandro Hidalgo defeated Joaquin Jesus Monteferrario 6-3 6-1 in the Argentina F1 round of 16 on clay. The upset overturned the form book — Joaquin Jesus Monteferrario came in leading the head-to-head 2–0. Gabriel Alejandro Hidalgo claimed a first win over Joaquin Jesus Monteferrario in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-07-19 | Argentina F14 | R32 | clay | Joaquin Jesus Monteferrario | 7-5 6-0 |
| 2010-07-05 | Argentina F12 | R16 | clay | Joaquin Jesus Monteferrario | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.