Two years later in 2005 Masters had established himself on the full-forward line with Nemo. He won his first county senior championship title on the field of play that year as Muskerry were defeated by ten points. Masters later secured a second Munster club title, however, Nemo missed out on the ultimate success. In 2006 Nemo retained their county title with Masters securing a second county championship medal. The club made it three-in-a-row in 2007 before claiming the Munster club title also. It was Masters's third winners' medal in the provincial series. The subsequent All-Ireland club final pitted Nemo against St. Vincent's of Dublin. Unfortunately, Masters ended up on the losing side on that occasion.