Corcoran was just fifteen-years-old when he was invited onto the Cork minor hurling panel. Due to his age he reluctantly declined, however, he was persuaded at the second time of asking a few weeks later. To his surprise Corcoran was included on the starting fifteen and won his first Munster medal following a 5-7 to 1-2 trouncing of Tipperary. Cork later qualified for the All-Ireland final against Kilkenny with Corcoran lining out at midfield. The Cats were too strong on that occasion as Cork were defeated by 3-13 to 0-12.