Juan Albert Viloca Puig defeated Carlos Rexach Itoiz 7-5 6-1 in the Spain F9 round of 16 on clay. The upset overturned the form book — Carlos Rexach Itoiz came in leading the head-to-head 1–0. Juan Albert Viloca Puig claimed a first win over Carlos Rexach Itoiz in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-24 | Spain F12 | R16 | clay | Carlos Rexach Itoiz | 6-1 1-6 6-2 |