Hector Ruiz Cadenas defeated Arkaitz Manzarbeitia Ugate 5-7 6-2 6-1 in the Spain F4 round of 16 on clay. The upset overturned the form book — Arkaitz Manzarbeitia Ugate came in leading the head-to-head 1–0, but Hector Ruiz Cadenas had been the form player, winning 2 of their last 4 on clay. Hector Ruiz Cadenas claimed a first win over Arkaitz Manzarbeitia Ugate in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-08-02 | Spain F17 | R32 | clay | Arkaitz Manzarbeitia Ugate | 6-7(4) 6-3 6-0 |