Marcelo Palacios Siegenthale defeated Roberto Bautista Agut 3-6 6-3 6-4 in the Spain F2 round of 16 on clay. The upset overturned the form book — Roberto Bautista Agut came in leading the head-to-head 2–0, but Marcelo Palacios Siegenthale had been the form player, winning 2 of their last 6 on clay. Marcelo Palacios Siegenthale claimed a first win over Roberto Bautista Agut in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-09-28 | Spain F33 | R32 | hard | Roberto Bautista Agut | 6-3 6-0 |
| 2008-07-28 | Spain F29 | R32 | clay | Roberto Bautista Agut | 2-6 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.