David Marrero defeated David Diaz Ventura 6-2 7-5 in the Spain F20 qualifying round on clay. The upset overturned the form book — David Diaz Ventura came in leading the head-to-head 2–1. David Marrero narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-22 | Spain F38 | R16 | clay | David Diaz Ventura | 6-3 6-2 |
| 2005-01-03 | Spain 1 Satellite 3 | R16 | clay | David Marrero | 6-1 6-2 |
| 2004-03-01 | Spain 2 3 | R32 | clay | David Diaz Ventura | 4-6 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.