Rien van Haaften
Van Haaften became a referee in 1976. He became a referee on the B-list in the Dutch professional league from 1 January 1990. He refereed professional football matches for four years. He was afterwards a referee for another eight years in amateur football.  He stopped at the time because the rule applied that arbitrators were obliged to relegate to group 2 at the age of 50. After his own referee career, he remained closely involved with the referees. He was an arbitration teacher and coach of various top and amateur referees. He was also a lecturer in arbitration. Until his death, he was active for the Dutch national football federation (KNVB), including as a coach in talent development.