Lydia Perkins defeated Stephanie Halsell 7-6 6-3 in the San Antonio 10K r15 on hard. The upset overturned the form book — Stephanie Halsell came in leading the head-to-head 1–0. Lydia Perkins claimed a first win over Stephanie Halsell in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-01-04 | San Antonio 10K | R31 | hard | Stephanie Halsell | 4-6 7-5 6-4 |