Melvyn Op Der Heijde defeated Diego Hipperdinger 6-2 7-6 in the Netherlands Masters 1 round of 16 on clay. The result followed the form book — Melvyn Op Der Heijde came in leading the head-to-head 1–0. Melvyn Op Der Heijde extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-14 | Netherlands Masters 3 | R32 | clay | Melvyn Op Der Heijde | 6-2 6-4 |