Damian Patriarca defeated Jonathan Gonzalia 7-5 7-6 in the Argentina F4 round of 16 on clay. The upset overturned the form book — Jonathan Gonzalia came in leading the head-to-head 3–1. Damian Patriarca narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-09-10 | Bolivia F1 | F | clay | Jonathan Gonzalia | 6-4 6-3 |
| 2007-06-18 | Argentina F9 | SF | clay | Jonathan Gonzalia | 3-6 6-4 |
| 2005-05-23 | Brazil F5 | R32 | clay | Damian Patriarca | 6-2 6-0 |
| 2005-04-04 | Chile F1 | QF | clay | Jonathan Gonzalia | 6-3 2-6 7-6(6) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.