Vagabonds B beat Western Vikings 66-5 at Ballafletcher to add the Manx Plate to the Manx Shield they won earlier this season.
A dominant first half performance gave Vagas the game.
Tries from Danny Cain, James Clarke (two), Leigh Kennaugh (two), Arno Cruywagen and Kym Tomlinson, plus five Leigh Kennaugh conversions, gave Vagas a 45-0 lead at the break.
In the second half, Clarke added his third, Cruywagen his second and Piers Dillon also grabbed one with Kennaugh converting all three to give Vagas a 66-0 lead.
In the closing stages, Vikings started to get back into the game and they eventually picked up a consolation score from full back Sam Peel.
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