Andrew Derer defeated Rafael Moreno Negrin 2-6 6-3 6-2 in the Spain F10 round of 32 on hard. The upset overturned the form book — Rafael Moreno Negrin came in leading the head-to-head 1–0, but Andrew Derer had been the form player, winning 2 of their last 5 on hard. Andrew Derer claimed a first win over Rafael Moreno Negrin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-05-31 | Spain F9 | QF | hard | Rafael Moreno Negrin | 3-6 6-3 6-4 |