Jose Arnedo defeated Alejandro Aramburu 6-4 6-4 in the Paraguay F3 round of 16 on clay. The upset overturned the form book — Alejandro Aramburu came in leading the head-to-head 2–0. Jose Arnedo claimed a first win over Alejandro Aramburu in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-09 | Paraguay F2 | R32 | clay | Alejandro Aramburu | 6-7 7-5 4-0 |
| 1995-04-01 | Argentina 1 Masters 1 | R32 | clay | Alejandro Aramburu | 6-4 6-2 |