Mayumi Yamamoto defeated Paula Zabala 6-2 6-3 in the Waco TX 10K round of 16 on hard. The result followed the form book — Mayumi Yamamoto came in leading the head-to-head 1–0. Mayumi Yamamoto extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-07-28 | Harrisonburg VA 10K | R32 | hard | Mayumi Yamamoto | 6-2 6-3 |