Kylene Wong Simunyola defeated Karla Mancinas 6-2 1-6 6-2 in the Nuevo Laredo 2 5K round of 32 on hard. The upset overturned the form book — Karla Mancinas came in leading the head-to-head 1–0. Kylene Wong Simunyola claimed a first win over Karla Mancinas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-02-27 | Nuevo Laredo 3 5K | R16 | hard | Karla Mancinas | 7-6 2-1 |