Mariano Albert Ferrando defeated Marc Fornell Mestres 6-4 6-0 in the Spain F21 round of 16 on clay. The upset overturned the form book — Marc Fornell Mestres came in leading the head-to-head 2–1, but Mariano Albert Ferrando had been the form player, winning 6 of their last 10 on clay. Mariano Albert Ferrando narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-03-03 | Spain 2 4 | F | clay | Marc Fornell Mestres | 6-4 3-6 3-1 |
| 2002-08-26 | Spain F12 | SF | clay | Mariano Albert Ferrando | 4-6 6-4 6-4 |
| 2002-07-08 | Spain F5 | SF | clay | Marc Fornell Mestres | 3-6 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.