Marc Fornell Mestres defeated German Puentes 6-4 7-5 in the Spain F21 round of 32 on clay. The upset overturned the form book — German Puentes came in leading the head-to-head 3–1. Marc Fornell Mestres narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-07-04 | Spain F14 | R16 | clay | German Puentes | 6-1 7-5 |
| 2004-02-16 | Spain F3 | R32 | clay | Marc Fornell Mestres | 6-2 6-2 |
| 2004-02-09 | Spain F2 | R16 | clay | German Puentes | 7-5 1-6 7-5 |
| 1999-02-26 | Spain 3 Masters 4 | R32 | clay | German Puentes | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.