Chemseddine Belal defeated Boy Wijnmalen 5-7 7-6 6-3 in the Netherlands 1 4 round of 16 on clay. The upset overturned the form book — Boy Wijnmalen came in leading the head-to-head 1–0. Chemseddine Belal claimed a first win over Boy Wijnmalen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-06-11 | Netherlands 4 | R16 | clay | Boy Wijnmalen | 6-2 4-6 6-6 |