Erik Casas defeated Mario Pacheco 0-6 7-5 7-6 in the Mexico Masters 3 round of 32 on hard. The upset overturned the form book — Mario Pacheco came in leading the head-to-head 1–0. Erik Casas claimed a first win over Mario Pacheco in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-09-18 | Mexico 3 Masters 1 | R32 | hard | Mario Pacheco | 7-5 6-3 |