Stephanie Halsell defeated Lydia Perkins 4-6 7-5 6-4 in the San Antonio 10K r31 on hard. The upset overturned the form book — Lydia Perkins came in leading the head-to-head 1–0. Stephanie Halsell claimed a first win over Lydia Perkins in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-01-04 | San Antonio 10K | R15 | hard | Lydia Perkins | 7-6 6-3 |