Cecilia Costa Melgar defeated Natalia Guitler 4-6 6-3 6-1 in the Asuncion 10K round of 16 on clay. The result followed the form book — Cecilia Costa Melgar came in leading the head-to-head 1–0. Cecilia Costa Melgar extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-11-10 | Santiago 10K | R32 | clay | Cecilia Costa Melgar | 6-3 6-3 |