Juan Antonio Marin defeated Sebastian Prieto 7-5 4-6 6-3 in the Valencia q32 on hard. Juan Antonio Marin extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-02-09 | Vina del Mar | Q16 | clay | Juan Antonio Marin | 7-6(4) 7-6(4) |
| 2003-02-10 | Vina del Mar | Q32 | clay | Sebastian Prieto | 1-6 6-2 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.