Gymns became the final team to qualify for the Warehouse Fitness Floodlit Cup semi-finals on Sunday.
A goal in each half from Kayleigh Whitehead booked their place at the expense of Colby in a 2-1 win.
The southerners, who only needed a draw to qualify, replied through debutant Sarah Wignall.
FC Isle of Man returning to league action at Barnoldswick Town
Ravens' latest opponents on six-match winning streak
Hockey: Compact mixed schedule on the cards this weekend
Multiple relegation scraps to take place across divisions
Rugby: Busy triple-header beckons at Ballafletcher
Douglas to welcome Kirkby Lonsdale in Regional 2 North West
Football: Race for Railway Cup qualification hotting up
Four points separates premier league top five going into the weekend
