Gustavo Cavallaro defeated Sebastian Prieto 7-5 6-0 in the Argentina 3 Masters 4 round of 32 on clay. The result followed the form book — Gustavo Cavallaro came in leading the head-to-head 3–1. Gustavo Cavallaro extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1995-04-29 | Brazil 1 Masters 2 | QF | hard | Sebastian Prieto | 7-5 6-3 |
| 1994-07-16 | Argentina 2 Masters 1 | QF | clay | Gustavo Cavallaro | 6-3 6-0 |
| 1994-07-16 | Argentina 2 Masters 2 | R16 | clay | Gustavo Cavallaro | 6-2 7-5 |
| 1993-11-06 | Uruguay Paraguay Masters 4 | R32 | clay | Gustavo Cavallaro | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.