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Grigoriadis was the first Greek swimmer to be crowned world champion in the 50 m backstroke event of the 2005 World Championships in Montreal. At the European Championships of Eindhoven in 2008, he won two medals: the gold in 50 m backstroke and the silver in 100 m backstroke.

He participated at the 2012 Olympic Games in the 100 m backstroke event, in which he reached the semifinals, taking the 14th place.


  • Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill. "Aristeidis Grigoriadis". Olympics at Sports Reference LLC. Retrieved 17 May 2010.