Mulhall made his first appearance for the team during the 2009 Walsh Cup and became a regular impact sub over subsequent seasons until he left the panel prior to the 2012 championship. He ended up as an All-Ireland runner-up on one occasion. At club level Mulhall plays with the Saint club
Minor and under-21 were later defeated in the All-Ireland semi-final. retained their Leinster title in 2009 following a 2-20 to 1-19 defeat of Dublin.
A second All-Ireland final appearance for Mulhall soon followed, with Clare providing the opposition. A close game developed, however, Mulhall ended up on the losing side by just a single point.
Senior Mulhall made his debut for the senior team during the 2010 National League and became a regular substitute during the subsequent championship campaign. subsequently qualified for an All-Ireland final showdown with Tipperary and the chance to make history by claiming a fifth successive championship. In 2011 Mulhall failed to break onto the starting fifteen once again, however, he remained a very important fringe player.
Mulhall later secured a second Leinster winners" medal following a 4-17 to 1-15 defeat of Dublin.
He later came on as a substitute in All-Ireland final against Tipperary. started quickly and never surrendered the lead in the 2-17 to 1-16 victory. lieutenant was Mulhall"s first All-Ireland winners" medal. Mulhall left the senior hurling panel following the conclusion of the 2012 National League.
Saint UCC French