He is on the books of Altinordu and wears shirt number 88. His main role on the pitch is Defender. He measures 171cm in height and weighs 59kg. His stronger foot is Left. His estimated market valuation currently stands at 10K €.

His latest transfer saw him join Bursa Yildirim SK from Altinordu via Free on 2026-01-19.

Across the Turkish Second League 2025-2026, Mustafa Kocabaş appeared in 10 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.