LLANRHAEADR survived a second-half fightback to prevail 4-3 winners at home to Bow Street.
The champions raced into a three goal lead inside the opening 25 minutes as Tom Evans, Barry Morris and Khyam Wytton struck.
However Street staged a comeback and restored parity through goals from Ifan Burrell, Stefano Antoniazzi and Garmon Nutting.
Llanrhaeadr were not to be denied with Chris Aitken netting a dramatic late winner.
Meanwhile Kerry ended their season on a high with a 2-0 win over Knighton Town at Dolforgan Park courtesy of goals from Tom Jones and Max McLaughlin.
Carno ended their campaign with a 1-1 draw at Aberaeron with Andy Evans on target for the visitors while Mattie Davies struck for the Seasiders.
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