Douglas B recorded an emphatic 90-7 win over Ramsey B to claim the remaining spot in the Shimmin Wilson Manx Trophy final.
They will now meet Southern Nomads in the final on April 21.
In the Shimmin Wilson Manx Bowl, Castletown rounded off their season in style with a 25-17 win over Vagabonds B.
Mick Shipley crossed twice in the first half for Town before Brian Quinn hit back for Vagas to leave it 10-5 at the break.
In the second half, two tries from Stevie Gawne, plus a conversion from Aiden O’Shea, brought Vagas right back into it, until tries from Barry Irvine and Billy Hanrahan, plus a penalty and conversion from Sam Peel, gave Town the win.
The result doesn’t affect the standings and the final will be contested by Vagabonds B and Emerging Nomads.
FC Isle of Man returning to league action at Barnoldswick Town
New padel courts in Noble's Park opening after two years in development
Hockey: Compact mixed schedule on the cards this weekend
Rugby: Busy triple-header beckons at Ballafletcher