Alvaro Guillen Meza defeated Tomas Barrios Vera in the first round of the ATP Challenger event in Punta del Este, played on clay on 21 January 2024. The specific set scores were not recorded. Guillen Meza's victory advances him through the early stages of the tournament, where he will face stiffer competition in the subsequent rounds. The result represents a solid start for the Chilean player in what appears to be a domestic or regional event.