K. Suminaga is a professional footballer from JPN and is currently 28 years old. His main role on the pitch is Defender. He measures 171cm in height and weighs 65kg. His stronger foot is Right.

His latest transfer saw him join Aries Tokyo from Reinmeer Aomori FC via on 2026-01-20.

Across the Japanese Emperor's Cup 2025, K. Suminaga appeared in 2 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.