On 5 July 1998, Comerford was selected amongst the substitutes when Kilkenny qualified to play Offaly in the Leinster final. He was introduced as a substitute for John Dooley and collected a winners' medal after scoring a point from play in the 3-10 to 1-11 victory. On 13 September 1998, Comerford was back on the starting fifteen and lined out at centre-forward when Kilkenny once again faced Offaly in the All-Ireland final. He scored a point from play before being substituted in the 2-16 to 1-13 defeat.