Kosei Tani is a 26-year-old professional football player from JPN. He currently plays for Machida Zelvia, wearing the number 1 shirt. At the international level, he represents Japan U24. He plays primarily as a Goalkeeper. He stands at 187cm tall and weighs 78kg. His preferred foot is Right. His current market value is estimated at 1.5M €.

His most recent move was a Free from Gamba Osaka to Machida Zelvia on 2025-02-01.

In the Japanese J1 League 2026, Kosei Tani played 4 matches, averaging 0 interceptions, 0 tackles, and 1 clearances per game.