Raul Valdes defeated Rafael De Mesa 7-6 6-3 in the Ecuador F2 semi-final on clay. The upset overturned the form book — Rafael De Mesa came in leading the head-to-head 1–0. Raul Valdes claimed a first win over Rafael De Mesa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-17 | Ecuador F3 | R16 | clay | Rafael De Mesa | 7-5 4-6 7-6 |