Walter Orth defeated Boy Wijnmalen 6-4 7-6 in the Netherlands 1 1 round of 32 on clay. The upset overturned the form book — Boy Wijnmalen came in leading the head-to-head 1–0, but Walter Orth had been the form player, winning 2 of their last 6 on clay. Walter Orth 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 | R32 | clay | Boy Wijnmalen | 6-4 6-4 |