The defending champions had to dug deep to score on the stroke of the buzzer to record a narrow 36-25 win over their opponent.
Ketasco will felt down by after putting up a solid display that saw Elikplim, Mawuli Dodge put up a fantastic that got them many admirers.
But credit should go to David Akuffo, Julian Morgan and Maxwell Mod who turned on the heat in style and grabbed the two-pointer on the stroke of the buzzer to send their supporters into spontaneous jubilation.
For Ketasco fans, it was another failure to clinch the title after making three successive finals.
In the second semi-final, Koforidua Secondary Technical School managed to beat Ghana Secondary Technical School to set-up a final date against Mfantsipim.