Kosei Numata is a 25-year-old professional football player from JPN. He plays primarily as a Defender. He stands at 177cm tall and weighs 65kg. His current market value is estimated at 100K €.

His most recent move was a Free from Azul Claro Numazu to Renofa Yamaguchi on 2026-01-12.

Throughout the Japanese J3 League 2025, Kosei Numata featured in 29 matches, averaging 0.8 tackles, 0.6 interceptions, and 2 clearances per game, while blocking 0.2 shots per game.