Joaquin Jesus Monteferrario defeated Duilio Beretta 6-7 6-0 6-2 in the Peru F3 round of 32 on clay. The upset overturned the form book — Duilio Beretta came in leading the head-to-head 3–0. Joaquin Jesus Monteferrario claimed a first win over Duilio Beretta in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-20 | Argentina F7 | R16 | clay | Duilio Beretta | 6-1 7-5 |
| 2011-05-16 | Paraguay F1 | R32 | clay | Duilio Beretta | 7-6(8) 6-4 |
| 2011-04-04 | Chile F2 | R32 | clay | Duilio Beretta | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.