Guillermo Villalobos is a 25-year-old professional football player from CRC. He currently plays for LD Alajuelense, wearing the number 4 shirt. He plays primarily as a Defender. His preferred foot is Right. His current market value is estimated at 450K €.

His most recent move was a Free from Municipal Pérez Zeledón to LD Alajuelense on 2023-06-30.

Throughout the Costa Rica Primera Division 2025-2026, Guillermo Villalobos featured in 29 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.