Daniela Munoz Gallegos defeated Maria Jose Argeri 6-4 7-5 in the Mexico City 25K round of 16 on hard. The upset overturned the form book — Maria Jose Argeri came in leading the head-to-head 1–0. Daniela Munoz Gallegos claimed a first win over Maria Jose Argeri in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-13 | Mexico City 25K | R16 | hard | Maria Jose Argeri | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.