Miguel Tobon defeated Mario Pacheco 6-4 2-6 6-4 in the Ecuador Peru Masters 4 round of 16 on clay. The upset overturned the form book — Mario Pacheco came in leading the head-to-head 1–0. Miguel Tobon claimed a first win over Mario Pacheco in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-08-15 | Ecuador Peru Masters 3 | QF | clay | Mario Pacheco | 7-6 7-6 |