<prompt> Bhala ukuqhubeka kwalesi sigaba - UJoris Willem Eelco Tjebbes 5 Novemba 1929, Vlissingen 31 Julayi 2001, Hoogeveen wayengumbhukudi waseDashi we-freestyle. Wathola indondo yethusi eMqhudelwaneni WaseYurophu Wezemidlalo Yasemanzini wango-1950  <response>: futhi waqhudelana kuma-Olympic Asehlobo ka-1952. Phakathi kuka-1950 no-1952, uTjebbes wayengumpetha kazwelonke emjahweni wamamitha angu-100 no-400 futhi wabeka amarekhodi ayisishiyagalolunye kazwelonke emjahweni wamamitha angu-100, 200 no-400 wamahhala. 