Santos Sanchez Patino defeated Marcelo Palacios Siegenthale 6-4 6-1 in the Spain F16 round of 32 on clay. The upset overturned the form book — Marcelo Palacios Siegenthale came in leading the head-to-head 1–0. Santos Sanchez Patino claimed a first win over Marcelo Palacios Siegenthale in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-01 | Spain F19 | R32 | hard | Marcelo Palacios Siegenthale | 6-2 6-2 |