The JCK Junior Cup Final will be contested between St George’s and Peel.
St George’s secured the result of the day with a 2-0 win at Combination One champions Old Boys to end the home side’s hopes of a league and cup double.
Regular first-team players Michael McHale and Nick Bass notched a goal in each half to seal the Geordies’ final spot.
They’ll meet Peel after they ended the battling challenge of Combination Two side Marown.
The sides were level at the break with Ricky Lovett scoring for Marown.
However, a double from Niall Quayle and one from Matthew Woods ensured there was no derby shock.
FC Isle of Man get pre-season underway with summer festival
Swimming: Oscar Maddrell becomes triple British champion
Football: Mixed results for IoM Women in summer series
Kinley and Bezance to be Commonwealth baton and flag bearers