David Diaz Ventura defeated Gerard Granollers 7-5 6-4 in the Spain F11 round of 32 on clay. The upset overturned the form book — Gerard Granollers came in leading the head-to-head 2–1. David Diaz Ventura narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-04-26 | Spain F14 | R16 | clay | Gerard Granollers | 7-5 6-4 |
| 2008-10-20 | Spain F40 | R32 | clay | Gerard Granollers | 4-6 7-6(4) 6-2 |
| 2008-05-12 | Spain F19 | SF | clay | David Diaz Ventura | 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.