He currently plays for Altinordu, wearing the number 88 shirt. He plays primarily as a Defender. He stands at 171cm tall and weighs 59kg. His preferred foot is Left. His current market value is estimated at 10K €.

His most recent move was a Free from Altinordu to Bursa Yildirim SK on 2026-01-18.

Throughout the Turkish Second League 2025-2026, Mustafa Kocabaş featured in 10 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.