German Lopez defeated Emilio Viuda Hernandez 6-1 4-6 7-6 in the Spain 1 Masters 3 round of 32 on clay. The upset overturned the form book — Emilio Viuda Hernandez came in leading the head-to-head 3–1. German Lopez narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-16 | Spain 8 Masters 3 | R32 | clay | Emilio Viuda Hernandez | 4-6 7-5 6-4 |
| 1998-02-27 | Spain 3 Masters 4 | R32 | clay | Emilio Viuda Hernandez | 6-4 2-6 6-2 |
| 1998-01-03 | Spain 1 Masters 4 | QF | clay | Emilio Viuda Hernandez | 3-6 6-2 6-2 |
| 1997-02-28 | Spain 3 Masters 2 | R32 | clay | German Lopez | 5-7 6-1 6-2 |