Melisa Arevalo defeated Daniela Munoz Gallegos 6-1 6-3 in the Aguascalientes 10K qualifying round on clay. The upset overturned the form book — Daniela Munoz Gallegos came in leading the head-to-head 1–0. Melisa Arevalo claimed a first win over Daniela Munoz Gallegos in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-06-16 | Poza Rica 10K | QF | hard | Daniela Munoz Gallegos | 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.