Alejandro Aramburu defeated Alejandro Olivera 6-1 6-3 in the Brazil 2 Masters 3 round of 16 on clay. The upset overturned the form book — Alejandro Olivera came in leading the head-to-head 1–0. Alejandro Aramburu claimed a first win over Alejandro Olivera in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-12 | Argentina F3 | R32 | clay | Alejandro Olivera | 6-4 4-6 6-4 |