Peel 3-2 DHSOB
Peel ended Old Boys' six-match unbeaten run with a thrilling 3-2 victory at Douglas Road.
Rhys Oates, Shaun Kelly and Lee Gale got the goals for the hosts, who have now won six in succession.
Old Boys rallied back with goals from Gary Quirk and James McStay but couldn't find an equaliser.
Ryan Holdaway (Peel) and Sam Halliday (Old Boys) were both dismissed late on.
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
FC Isle of Man torn apart at Barnoldswick Town
It's the Manx side's heaviest ever league defeat