The epic 61-58 triumph at Neptune Stadium on Friday night in the opening tie in a bumper weekend of basketball semi-finals on Leeside.
In a game that Glanmire looked second best in for long periods, they managed to outscore Brunell 24-8 in the last quarter that secured their place into the final.
The emotions of winning and losing was clear to see at the final buzzer as the Glanmire coach Ronan O’Sullivan praised his young guns.
“That’s the third time we looked dead and buried in this championship and once again it was sheer determination that won us this game against a very good Brunell team,” said O’Sullivan.
Following this sensational victory, Glanmire will play DCU Mercy, who hammered Portlaoise Panthers, in the decider on January 27 at the National Basketball Arena.
There was a disappointment for Neptune who were attempting to complete a consecutive treble in these championships. Killorglin spoiled the party on this occasion as they won a superb President’s Cup semi-final when running out 87-82 winners.