Career
Khairun played for Negeri Sembilan FA, Selangor FA, MPPJ Football Club, Perlis FA, Melaka TMFC and Johor Football Club.
Khairun has played once for the Malaysia national football team He was in the Malaysia national under-21 football team that competes in the 1997 Fédération internationale de football association World Youth Championship, held in Malaysia. In the tournament, he scores an own goal in a 1-3 loss against Uruguay, and also was sent off in the game against Belgium as Malaysia exited the tournament in group stage having lost all 3 group games.