Joanne Moore defeated Nicole Rencken 6-2 7-6 in the San Salvador 10K qualifying round on clay. The upset overturned the form book — Nicole Rencken came in leading the head-to-head 1–0. Joanne Moore claimed a first win over Nicole Rencken in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-05-26 | Houston TX 10K | R16 | hard | Nicole Rencken | 6-4 6-3 |