Maurice Kelly (Naas) led by two shots after two rounds of the Irish Seniors Amateur Close title before going on to win by no less than six shots from David Mulholland of Catlerock.
Kelly recorded rounds of 71, 71 and 72 for 54 hole total of -5.
Royal Curragh's Alan Egan finished in fourth place on +3.
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.