The holder of fourteen senior handball titles, Kennedy has also won three Irish Nationals Open Singles and a Collegiate title in 2001 while representing Dublin City University in Minneapolis, USA. In 1999, he won the US Nationals Open Singles and two years later won the Canadian singles final with a resounding win over Canadian player Merv Deckert in Halifax, Nova Scotia, Canada. He has three Vodafone All Star Awards. In August 2006, he partnered Cork's Tony Healy to beat reigning champions Paul Brady and Michael Finnegan from Cavan in the Men's Open Doubles final in the World Championships in Edmonton, Alberta, Canada.