Agustin Tarantino defeated Antonio Pastorino 7-6 3-6 6-2 in the Chile F4 qualifying round on clay. The upset overturned the form book — Antonio Pastorino came in leading the head-to-head 4–2. Agustin Tarantino narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-09-08 | Argentina F10 | R16 | clay | Antonio Pastorino | 4-6 6-1 6-2 |
| 2006-11-20 | Uruguay F3 | R16 | clay | Antonio Pastorino | 6-2 6-4 |
| 2006-01-23 | Colombia F1 | R32 | clay | Agustin Tarantino | 6-4 5-7 6-4 |
| 2005-09-26 | Bolivia F1 | SF | clay | Agustin Tarantino | 6-3 6-2 |
| 2004-05-03 | Argentina F2 | R32 | clay | Antonio Pastorino | 6-0 6-2 |
| 2002-11-11 | Uruguay F1 | R16 | clay | Antonio Pastorino | 6-0 6-2 |