Emerging Nomads beat Castletown 31-24 in the Shimmin Wilson Manx Bowl at Poulsom Park.
It was a disappointing finale to the season for Castletown, who picked up tries from Mark Venables, Barry Irvine and a penalty try.
Sam Peel kicked three conversions and a penalty for Town.
Boxing: Jamie Devine's title fight called off
Manxman was due to fight for belt in Liverpool this month
Athletics: Top-five for Cain at Swansea Half Marathon
Helen Simpson also sets new Island record during meeting
Jamie Cringle 'a couple of steps closer in the right direction' after TT crash
Family says 'this is going to be the hardest fight he's ever had'
Football: Castletown and 'Youthie' into Paul Henry Gold Cup final
Both will meet in 2026 final this weekend