McCormack started to work on cycling events from 1963, from schoolboy to pro-am. He was best known for initiating the Junior Tour of Ireland to encourage younger riders, starting in 1978. He worked closely with the former cycling federation president, Karl McCarthy, who traveled to many cycling World Cups and other events with McCormack. He also worked as a coach and accompanied the Irish team to the 1987 UCI Road World Championships, where Stephen Roche became world champion. He also worked with John Lackey on the Tour of Ireland, before they passed direction of that event to Alan Rushton and Pat McQuaid.