Colby clinched a league and cup double on Easter Saturday after ending the brave challenge of Braddan.
The southerners added the GH Corlett Woods Cup to the CFS Division Two title they won a week earlier, with a 2-0 victory at the Bowl.
The champions were pushed all the way before two goals in the final eight minutes from Furo Davies and James Cain secured more silverware for the Glen Road side.
Shooting: Winter series gets underway
Ward, Berg and Parr lead the way
Cycling: Bostock nominated for national champion of the year
Manxman one of six riders on British Cycling shortlist
Football: Railway Cup hopefuls all maintain pace in premier league
Castletown stay four points clear atop Division 2
Rugby: Vagabonds Ladies stay top with another victory
Vagabonds men and Douglas also take respective wins on home soil