Kyle McCallan's century helped Waringstown clinch a comfortable 87-run over Instonians in Friday's NCU Challenge Cup final at Comber.
Waringstown slipped to 17-2 early in their innings but McCallan's 110 helped them reach 265-7 from their 50 overs.
Instonians put on 64 for the first wicket but then lost James Shannon and Andrew White as they slipped to 77-3.
They briefly rallied to 111-3 but then collapsed to 120-6 and Gary Kidd finished up with Inst five wickets.
Obus Pienaar also contributed 62 runs for Waringstown with Neil Russell top-scoring with 43 for Instonians.
Meanwhile, a tight finish seems in prospect following Friday's weather-affected opening day at the North West Senior Cup Final at Eglinton.
Gareth McKeegan's unbeaten 83 helped Brigade reach 228-5 in their 50-over first innings.
With showers leading to a number of interruptions, Donemana stumbled to 125-5 after 28 overs before day one came to a halt.
Junior McBrine was 11 not out with Richard Dougherty unbeaten on 15 and play will resume at 11:00 BST on Saturday.