Ernesto Ponce defeated Rafael Rangel 6-4 6-3 in the Mexico Masters 3 round of 16 on hard. The upset overturned the form book — Rafael Rangel came in leading the head-to-head 1–0. Ernesto Ponce claimed a first win over Rafael Rangel in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-07-27 | Mexico Masters 1 | QF | hard | Rafael Rangel | 3-6 6-3 6-4 |