Lotty Seelen defeated Marielle Hoogland 4-6 7-6 7-6 in the Amersfoort 10K round of 32 on clay. The result followed the form book — Lotty Seelen came in leading the head-to-head 1–0. Lotty Seelen extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-06-21 | Velp 10K | R32 | clay | Lotty Seelen | 6-2 6-4 |