Juan Pablo Villar defeated Andrea Collarini 6-4 6-2 in the Argentina F25 round of 16 on clay. The upset overturned the form book — Andrea Collarini came in leading the head-to-head 3–0. Juan Pablo Villar claimed a first win over Andrea Collarini in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-03-19 | Argentina F4 | R32 | clay | Andrea Collarini | 7-5 6-3 |
| 2011-10-03 | Argentina F18 | SF | clay | Andrea Collarini | 6-7(5) 7-6(5) 6-4 |
| 2011-08-08 | Argentina F10 | SF | clay | Andrea Collarini | 6-0 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.