He is on the books of TuS Blau-Weiss Lohne and wears shirt number 11. His main role on the pitch is Defender. His estimated market valuation currently stands at 50K €.

His latest transfer saw him join TuS Blau-Weiss Lohne from Blau-Weiß Lohne U19 via on 2012-06-30.

Across the German Regionalliga 2025-2026, Kai Westerhoff appeared in 7 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.