Ruben Merchan defeated David Marrero 6-4 6-4 in the Spain 2 4 round of 16 on clay. The upset overturned the form book — David Marrero came in leading the head-to-head 1–0. Ruben Merchan claimed a first win over David Marrero in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-06-09 | Spain F10 | R16 | hard | David Marrero | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.