Valentina Castro defeated Andrea Koch Benvenuto 6-4 4-6 6-4 in the Los Mochis 10K round of 16 on clay. The result followed the form book — Valentina Castro came in leading the head-to-head 1–0. Valentina Castro extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-27 | Caracas 10K | R32 | hard | Valentina Castro | 3-6 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.