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Wiki information Koolhof:
Jurjen Jacob Koolhof is a former Dutch international football striker and manager. As a player, Koolhof had a long and productive career, with 190 league goals. He played for a number of clubs in the Netherlands including Vitesse Arnhem, F.C....
Wesley Koolhof is a Dutch tennis player playing on the ATP Challenger Tour. On 5 August 2013, he reached his highest ATP singles ranking of 462 and his highest doubles ranking of 158 achieved on 27 January 2014.