Andrea Serra defeated Israel Vior Diaz 0-6 7-5 6-3 in the Spain F5 round of 32 on clay. The upset overturned the form book — Israel Vior Diaz came in leading the head-to-head 1–0, but Andrea Serra had been the form player, winning 1 of their last 8 on clay. Andrea Serra claimed a first win over Israel Vior Diaz in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-05 | Spain 6 Masters 4 | R32 | clay | Israel Vior Diaz | 6-1 6-7 6-1 |