Helga Vieira defeated Melissa Torres Sandoval 6-4 6-3 in the Cuernavaca 10K round of 16 on clay. The result followed the form book — Helga Vieira came in leading the head-to-head 1–0. Helga Vieira extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-30 | Queretaro 10K | R16 | clay | Helga Vieira | 3-6 6-2 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.