Oscar Martinez Dieguez defeated Carlos Castellanos 6-4 6-7 6-4 in the Spain 4 2 final on clay. The result followed the form book — Oscar Martinez Dieguez came in leading the head-to-head 1–0. Oscar Martinez Dieguez extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-07-27 | Spain F4 | SF | clay | Oscar Martinez Dieguez | 2-6 6-2 6-2 |