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.