 In 2006 and 2007, Cathal Óg was part of the Laois panel that won the Leinster U21 Football Championship and in 2008 he was midfield on the side which again won the Leinster U21 Football Championship only to go on to lose to Cork in the All-Ireland Under 21 Football Championship Final to a last minute goal.At club level, Cathal Óg lined out as a midfielder with Park/Ratheniska with whom he has won a Laois Junior Football Championship and a Leinster Junior Club Football Championship in 2006.Cathal Óg also holds Laois Minor Football Championship and Leinster Minor Football Championship medals as well as a number of Schools titles won with Portlaoise CBS.