He currently plays for Gremio Novorizontino, wearing the number 27 shirt. He plays primarily as a Forward. He stands at 182cm tall and weighs 73kg. His preferred foot is Left. His current market value is estimated at 150K €.

His most recent move was a Loan from Gremio Novorizontino to Esporte Clube Noroeste (SP) on 2026-12-30.

In the Brazilian Serie B 2024 season, Diego Mathias scored 3 goals and provided 2 assists across 34 appearances, averaging 0.1 goals per game with 40 shots attempted and 14 on target.