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.
Football: Remaining Railway Cup semi-final moved to midweek slot
Tie was called off last weekend due to poor weather
FC Isle of Man clash at Atherton LR tonight postponed
Manx team's flight cancelled due to Storm Bram
Athletics: Mullarkey second in Connecticut
Manxman impresses in USA
Hockey: Dunn and England beaten in junior world cup quarter-finals
Manx player and national side lose out to Netherlands in Santiago
