He is on the books of Fortuna Koln and wears shirt number 27. His main role on the pitch is Forward. His stronger foot is Right. His estimated market valuation currently stands at 50K €.

His latest transfer saw him join Fortuna Koln from Dusseldorf II via on 2025-07-01.

During the German Regionalliga 2025-2026 campaign, K. Brechmann made 23 appearances, scoring 1 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.