Alberto Banus Sado defeated Diego Hipperdinger 6-4 6-4 in the Spain 5 Masters 4 round of 16 on clay. The upset overturned the form book — Diego Hipperdinger came in leading the head-to-head 1–0. Alberto Banus Sado claimed a first win over Diego Hipperdinger in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-15 | Spain 7 Masters 4 | R32 | clay | Diego Hipperdinger | 6-4 6-4 |