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 held to draw in season opener
Ravens and Litherland share spoils in goalless stalemate
Hickman issues post-surgery update: 'Everything is looking promising'
The 14-time race winner came off his bike at the end of practice week
Basketball: IoM ladies strike gold in Ynys Mon
Manx side claim top spot at Inter-Island Games
FC Isle of Man to begin 2025/26 season this weekend
Ravens kicking-off campaign at home to Litherland REMYCA tomorrow (26 July)