Daniel Wajnberg defeated Rodrigo Pena 6-4 7-5 in the Ecuador F2 round of 32 on clay. The upset overturned the form book — Rodrigo Pena came in leading the head-to-head 1–0. Daniel Wajnberg claimed a first win over Rodrigo Pena in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-02 | Chile 2 Masters 3 | R32 | clay | Rodrigo Pena | 7-6 6-2 |