Marrit Boonstra defeated Nicole Thyssen 6-7 6-3 6-3 in the Alkmaar 10K round of 16 on clay. The result followed the form book — Marrit Boonstra came in leading the head-to-head 1–0. Marrit Boonstra extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-12-05 | Raanana 10K | R32 | hard | Marrit Boonstra | 6-1 6-2 |