Tomoya Koyamatsu is a 31-year-old professional football player from JPN. He currently plays for Nagoya Grampus, wearing the number 58 shirt. He plays primarily as a Midfield. He stands at 171cm tall and weighs 64kg. His preferred foot is Right. His current market value is estimated at 750K .

His most recent move was a Free from Kashiwa Reysol to Nagoya Grampus on 2026-01-12.

Across 38 appearances in the Japanese J1 League 2025, Tomoya Koyamatsu registered 3 goals and 10 assists, while completing 55 key passes out of 1441 total passes with a passing accuracy of 31.9.