Jacobo Diaz defeated German Puentes 6-2 6-3 in the Spain F8 qualifying round on clay. The result followed the form book — Jacobo Diaz came in leading the head-to-head 3–2. Jacobo Diaz extended the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-19 | Spain F15 | QF | clay | Jacobo Diaz | 7-5 1-2 |
| 1996-01-05 | Spain 1 Masters 4 | SF | clay | Jacobo Diaz | 6-2 6-1 |
| 1995-02-03 | Spain 2 Masters 3 | R32 | clay | Jacobo Diaz | 6-3 6-1 |
| 1994-08-12 | Spain 7 Masters 3 | QF | clay | German Puentes | 6-2 6-2 |
| 1994-02-04 | Spain 1 Masters 1 | R16 | hard | German Puentes | 6-4 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.