Fox Lodge will meet Strabane Saints in the Ladies Cup final following the Ballymagorry sides 8-wicket win over Burndennett.
Julie Logue (37) and Kylie McGarrigle (18) shared an opening stand of 60 off the opening ten overs.
Mollie Devine (3-19) changed the course of the tie, taking the key wickets of Logue, McGarrigle and Arbuckle.
Nicola Arbuckle (14) and Megan McGettigan (15) both made double figures in a final Burndennett total of 101 off their 20 overs.
Julie Logue struck in the first over to give Burndennett hope, but a superb second wicket stand of 96 between Emma Allen and player of the match Mollie Devine ensured a routine win for the hosts.
Allen struck three boundaries in her unbeaten 47 from 45 balls (3 fours), while Devine made 35 before being trapped lbw by Logue (2-10) with just six needed.
Hannah McLaughlin joined Allen and they knocked off the six required to win with 3.4 overs to spare.
Their opponents in the showpiece decider will be Strabane Saints who were given a walkover into the final after Eglinton forfeited.
Strabane Saints skipper Megan Moorehead said; "I am thrilled to be going through to the 2018 ladies cup final even though we would have preferred to have played to gain the place in the final.
"Itís unfortunate that Eglinton could not field a team but we hope they can rebuild for the reminder of the season as they are a great bunch of girls.
"We look forward to face on Fox Lodge as it is sure to be a thrilling competition between our two teams but my girls are more determined than ever and we hope I can get the cup back to Strabane Park.
The date and venue for the final will be announced in due course.