St. Mary's are off the mark in the Sure Mobile Premier League.
They beat Corinthians 3-0 on Wednesday evening in driving rain and gale force winds.
The game was originally scheduled for last Saturday but the pitch was waterlogged.
Stephen Glover, who moved to St. Mary's from Corinthians in the summer, scored twice with Jamie Skillen the other player on target.
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
Hockey: Harlequins A beat rivals to close in on prem leaders
Bacchas B take important victory in battle for top-flight safety