Marown moved to the top of CFS Division Two with an 8-0 rout over Malew on Saturday.
A Phil Jones treble, doubles from Kenny Magee and Jeremy Lovett and one from James Sharp ensured the westerners return to summit.
Andy Glover continued his rich vein of form in front of goal with a hat-trick as Foxdale sealed a 3-1 victory over the Police.
Ramsey Youth Centre saw off Onchan 2-0 in a battle between two sides with potential, thanks to goals from Steven Oates and John Shields.
Football: Div 2 top two to meet in crunch midweek clash
Castletown & Onchan face off ahead of another busy three-day schedule (Fixtures: 23-25 Apr)
Ben Birchall: Sidecar TT competition 'good for the sport'
14-time winner says new teammate Rousseau 'ticks all the boxes'
Snooker: Cue Zone Blinders retain league title
Three-way tie for individual league crown after season finale
Football: Peel win Women's FA Cup to secure season double
Corkish double helps westerners beat resilient Onchan
London Marathon: "some great performances from Isle of Man runners"
Results from Sunday's event
Cycling: Cavendish to return to racing this weekend
38-year-old has had a spell out due to recent illness
