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 set for tough test against Chadderton
Ravens looking to bounce back after Atherton beating
Football: Top two clash in Division 2
Marown looking to close gap to Castletown
Hockey: Two Bacchas sides could wrap up titles this weekend
Bacchas Mens A and B have significant leads
Rugby: Vagabonds looking for third succussive win
One Manx side in action this weekend
Classic Three Legs of Mann Rally returns to Island
Event has entered its sixth year