Eduardo Magadan Castro defeated Alexandre Bonatto 7-6 6-4 in the Mexico F15 round of 32 on hard. The upset overturned the form book — Alexandre Bonatto came in leading the head-to-head 1–0. Eduardo Magadan Castro claimed a first win over Alexandre Bonatto in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-06 | Mexico F16 | QF | hard | Alexandre Bonatto | 7-5 6-2 |