Alejandro Vargas Aboy defeated Juan Albert Viloca Puig 6-3 6-4 in the Spain 4 1 round of 32 on clay. The upset overturned the form book — Juan Albert Viloca Puig came in leading the head-to-head 1–0, but Alejandro Vargas Aboy had been the form player, winning 2 of their last 5 on clay. Alejandro Vargas Aboy claimed a first win over Juan Albert Viloca Puig in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-03-03 | Spain 2 4 | QF | clay | Juan Albert Viloca Puig | 2-6 6-4 6-3 |