Damian Furmanski defeated Miguel Pastura 4-6 7-6 6-1 in the Argentina F1 qualifying round on clay. The upset overturned the form book — Miguel Pastura came in leading the head-to-head 3–2. Damian Furmanski narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-11-01 | Argentina F4 | QF | clay | Damian Furmanski | 7-6 6-4 |
| 1997-11-01 | Uruguay Masters 4 | SF | clay | Damian Furmanski | 7-6 0-6 6-1 |
| 1996-09-28 | Argentina 3 Masters 3 | QF | clay | Miguel Pastura | 7-6 6-4 |
| 1995-08-05 | Argentina B Masters 1 | QF | clay | Miguel Pastura | 7-6 4-6 6-2 |
| 1995-08-05 | Argentina B Masters 2 | SF | clay | Miguel Pastura | 6-3 7-6 |