Leandro Rosa defeated Alejandro Aramburu 7-6 6-3 in the Peru F1 round of 16 on clay. The upset overturned the form book — Alejandro Aramburu came in leading the head-to-head 3–0. Leandro Rosa claimed a first win over Alejandro Aramburu in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-05 | Bolivia F3 | QF | clay | Alejandro Aramburu | 6-7 6-2 6-0 |
| 1998-07-20 | Brazil F1 | R16 | clay | Alejandro Aramburu | 6-3 6-2 |
| 1997-04-05 | Brazil 1 Masters 4 | R32 | clay | Alejandro Aramburu | 6-0 6-2 |