Mario Rincon defeated Federico Pierini 7-6 6-1 in the Ecuador Masters 4 round of 16 on clay.
Rincon M. took it in straight sets.
Mario Rincon beat Federico Pierini 7-6 6-1. Umpiry, "Mario Rincon vs Federico Pierini — Ecuador Masters 4 Round of 16", https://umpiry.com/match/1992-08-10/pierini-vs-rincon-ecuador-masters-4-r16?utm_source=cite (as of 10 August 1992).