David Diaz Ventura defeated Marcel Granollers 6-3 6-4 in the Spain F28 round of 32 on clay. The upset overturned the form book — Marcel Granollers came in leading the head-to-head 1–0. David Diaz Ventura claimed a first win over Marcel Granollers in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-06 | Spain F26 | R32 | hard | Marcel Granollers | 6-0 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.