Rossana De Los Rios defeated Melisa Arevalo 6-1 6-4 in the Asuncion 10K qualifying round on clay. The result followed the form book — Rossana De Los Rios came in leading the head-to-head 1–0. Rossana De Los Rios extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-06 | Buenos Aires 10K | F | clay | Rossana De Los Rios | 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.