Nicolas Pastor defeated Juan Vazquez Valenzuela 2-6 7-6 7-6 in the Argentina F7 round of 32 on clay. The upset overturned the form book — Juan Vazquez Valenzuela came in leading the head-to-head 1–0, but Nicolas Pastor had been the form player, winning 4 of their last 7 on clay. Nicolas Pastor claimed a first win over Juan Vazquez Valenzuela in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-29 | Argentina F11 | QF | clay | Juan Vazquez Valenzuela | 6-4 6-3 |