Cecilia Guillenea defeated Nathalia Bellizia 6-4 1-6 6-4 in the Lima 10K qualifying round on clay. The result followed the form book — Cecilia Guillenea came in leading the head-to-head 1–0. Cecilia Guillenea extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-20 | Asuncion 10K | R32 | clay | Cecilia Guillenea | 6-2 5-7 6-4 |