<prompt> Pedzisa mutsara unotevera: Jans Koster akaberekwa muna 1938 mutambi akarega basa wokuNetherlands. Akakunda menduru yegoridhe pa  <response>: 1958 European Aquatics Championships 400 m uye akaisa mbiri dzeEurope uye mbiri dzenyika mu1500 m muna 19561957. Pana 9 March 1960 akaroora Ben Hulsegge. 