 He played for HFC Haarlem (1981–87), FC Twente (1987–89), Feyenoord Rotterdam (1989–90), SVV (1991), HFC Haarlem (1991–93), SC Heerenveen (1993–94) and AZ Alkmaar (1995–96).He retired in 1996, playing for the club where he started his career, HFC Haarlem.Keur was a member of the famous Haarlem-team, that competed in the UEFA Cup in the 1982–83 season, for the first time in the club's history.