Career
He played as a defensive midfielder. His football (soccer) career began with Heracles Almelo in the 1993-1994 season. The next season Kooijman played with Football Club Groningen and later with Arizona from 1995 until 1997.
Football Club Emmen was his next club where he played until 1999.
Following that club, he moved to Go Ahead Eagles until 2003. He was transferred to De Graafschap where he played until 2005 and moved to Stage Directors and Choreographers Putten in the 2005-2006 season at the amateur level
He switched to AGOVV Apeldoorn and returned to professional football in 2006. Recently, he returned to the amateur level and plays with Sparta Nijkerk in 2007.