Maria Jose Argeri defeated Kyra Nagy 7-6 6-3 in the Mexico City 25K qualifying round on hard. The upset overturned the form book — Kyra Nagy came in leading the head-to-head 1–0, but Maria Jose Argeri had been the form player, winning 4 of their last 6 on hard. Maria Jose Argeri claimed a first win over Kyra Nagy in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-11-17 | Puebla 25K | R16 | hard | Kyra Nagy | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.