Antonio Pastorino defeated Alejandro Kon 6-2 6-1 in the Argentina F11 round of 32 on clay. The upset overturned the form book — Alejandro Kon came in leading the head-to-head 2–1. Antonio Pastorino narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-06-14 | Argentina F9 | R32 | clay | Antonio Pastorino | 6-3 6-2 |
| 2007-11-12 | Venezuela F9 | SF | clay | Alejandro Kon | 1-6 6-2 4-2 |
| 2007-09-03 | Argentina F15 | R16 | clay | Alejandro Kon | 7-6(3) 4-6 7-6(2) |