Juan Ignacio Londero defeated Joaquin Jesus Monteferrario 6-4 6-4 in the Argentina F21 round of 32 on clay. The upset overturned the form book — Joaquin Jesus Monteferrario came in leading the head-to-head 2–0. Juan Ignacio Londero 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 |
|---|---|---|---|---|---|
| 2012-11-26 | Argentina F27 | R32 | clay | Joaquin Jesus Monteferrario | 7-5 6-7(6) 7-5 |
| 2010-07-05 | Argentina F12 | QF | clay | Joaquin Jesus Monteferrario | 6-4 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.