Kazuma Yamaguchi is a 31-year-old professional football player from JPN. He currently plays for Thespa Kusatsu Gunma, wearing the number 5 shirt. He plays primarily as a Midfield. He stands at 175cm tall and weighs 70kg. His preferred foot is Right. His current market value is estimated at 175K .

His most recent move was a Free from Matsumoto Yamaga FC to Thespa Kusatsu Gunma on 2026-02-01.

Across 10 appearances in the Japanese J3 League 2025, Kazuma Yamaguchi registered 2 goals and 1 assists, while completing 7 key passes out of 87 total passes with a passing accuracy of 7.1.