Jeroen Masson defeated Melvyn Op Der Heijde 7-5 6-0 in the Netherlands F1 round of 16 on clay. The upset overturned the form book — Melvyn Op Der Heijde came in leading the head-to-head 1–0, but Jeroen Masson had been the form player, winning 4 of their last 6 on clay. Jeroen Masson claimed a first win over Melvyn Op Der Heijde in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-06-30 | Netherlands F3 | SF | clay | Melvyn Op Der Heijde | 6-0 6-1 |