Alberto Banus Sado defeated Carlos Castellanos 6-4 3-6 6-3 in the Spain 3 2 round of 32 on clay. The upset overturned the form book — Carlos Castellanos came in leading the head-to-head 1–0, but Alberto Banus Sado had been the form player, winning 4 of their last 8 on clay. Alberto Banus Sado claimed a first win over Carlos Castellanos in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-08-08 | Spain 7 Masters 1 | R32 | clay | Carlos Castellanos | 4-6 7-5 6-4 |