Kotaro Hayashi is a 26-year-old professional football player from JPN. He currently plays for Machida Zelvia, wearing the number 26 shirt. He plays primarily as a Defender. He stands at 170cm tall and weighs 70kg. His current market value is estimated at 900K €.

His most recent move was a Free from Yokohama FC to Machida Zelvia on 2024-01-08.

Throughout the Japanese J1 League 2026, Kotaro Hayashi featured in 4 matches, averaging 1 tackles, 0 interceptions, and 1.5 clearances per game, while blocking 0.3 shots per game.