Lauren Barnikow defeated Valentina Castro 6-4 7-5 in the Mazatlan 10K round of 16 on hard. The result followed the form book — Lauren Barnikow came in leading the head-to-head 1–0. Lauren Barnikow extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-02 | Obregon 10K | QF | hard | Lauren Barnikow | 6-1 6-1 |