 He played the 2006 IBF World Championships in men's singles and he was defeated in third round by Lee Chong Wei 21-16, 21-12.Joachim Persson reached the finals of the Denmark Open Super Series 2008 and lost in the finals to his compatriot, Peter Gade.In 2004 he won the Irish International, in 2005 the Finnish International Championships and the V Italian International, and in 2006 the Austrian International, the Swedish International and the Finnish International Championships.