A sport sociologist and coach educator, his research primarily examines the formation of endurance running coaches’ practices through a Foucauldian lens. Along with numerous book chapters and referred articles, he edited Coaching Knowledges: Understanding the Dynamics of Performance Sport (2007, AC Black) and was co-editor of The Routledge Handbook of Sports Coaching (2013, Routledge). In addition, Denison is the author of The Greatest (2004, Breakaway Books), the official biography of the Ethiopian running legend Haile Gebrselassie, and Bannister and Beyond: The Mystique of the Four-Minute Mile (2003, Breakaway Books), a collection of in-depth interviews with a wide-array of sub four-minute milers