Ruben Alvarenga defeated Americo Venero Montes 7-6 6-3 in the Peru Bolivia Masters 4 round of 16 on clay. The upset overturned the form book — Americo Venero Montes came in leading the head-to-head 2–0. Ruben Alvarenga claimed a first win over Americo Venero Montes in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-09-07 | Peru Bolivia Masters 3 | QF | clay | Americo Venero Montes | 4-6 7-6 7-5 |
| 1992-08-10 | Ecuador Masters 4 | R16 | clay | Americo Venero Montes | 6-3 6-2 |