Gustavo Marcaccio defeated Andres Dellatorre 6-4 6-2 in the Argentina 2 Masters 1 round of 32 on clay. The upset overturned the form book — Andres Dellatorre came in leading the head-to-head 4–2. Gustavo Marcaccio narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-11-03 | Argentina F6 | R32 | clay | Andres Dellatorre | 6-4 7-5 |
| 2001-03-19 | Argentina F2 | R32 | clay | Andres Dellatorre | 6-1 1-0 |
| 2000-10-23 | Colombia F2 | R32 | clay | Andres Dellatorre | 6-2 3-6 3-0 |
| 2000-10-16 | Columbia F1 | R16 | clay | Gustavo Marcaccio | 6-4 4-6 6-2 |
| 2000-09-25 | Bolivia F2 | R32 | clay | Andres Dellatorre | 6-7(5) 6-1 6-2 |
| 2000-07-24 | Argentina F7 | R16 | clay | Gustavo Marcaccio | 6-3 6-7(1) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.