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.
Cycling: Tommy Bass crowned national youth champion
He's one of several Manx riders who impressed during circuit series
Football: Premier league quartet keep up perfect starts
Castletown go top of Division 2 with back-to-back wins
Special Olympics IoM heading to landmark games in Sweden
It'll be largest event of its type ever hosted in the country
MGP Supporters Club to begin winding down process
Members vote to dissolve charity ahead of upcoming merger