First-half goals from Conor Davin and Owen Byrne paved the way for Maynooth's success at DCU as the Moyglare Road side overcame Portmarnock.
Maynooth had enjoyed a dream start with a free from Neil Flynn being followed up by midfielder Conor Davin's flicked finish past Luke Kavanagh.
Centre-forward Shane Carthy registered Portmarnock's first two scores, but they were cancelled out by a brace from Flynn. The second major of the contest arrived courtesy of Byrne on 19 minutes. Maynooth led 2-6 to 0-3 at half-time.
However, with seven minutes remaining Portmarnock had reduced the deficit to five thanks to Darragh Scanlon, Aaron Mulvey and Carthy (3).
A seventh Flynn point on 55 minutes halted Portmarnock's comeback. The closing stages saw dismissals for Maynooth's Shane Monaghan and Portmarnock's Denis Redmond.
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Drums' FAI Cup hero Ward passes away
LEO WARD, who died yesterday just two days after celebrating his 94th birthday, was the oldest holder of an FAI Cup winner's medal.
A left winger, he helped Drumcondra win the Cup in 1943 and 1946, and also won a league medal in 1949.
Ward, who joined Drums from Manchester City, and later played for Waterford, was involved in the cinema business.