Campbell College are through to their 41st Schools' Cup final after beating Methody 17-8 at Kingspan Stadium.
It was a deserved victory for the side that was the more clinical.
Campbell led 10-3 at the break thanks to good work just before the half.
They had been pinned back for much of the period but sterling defensive work held Methody out, succumbing only to a 30 metre penalty, slotted home by Ethan McIlroy.
"It's a huge weight off your shoulders then you realise you're straight back to work." 😂
Campbell College's try-scoring...Posted by Belfast Telegraph Sport on Tuesday, March 6, 2018
That came in between two periods of pressure that ended short of the try-line. First Jonah Bingham drove his side up to the five-metre line but stout defensive work held out.
Then Tom O'Doherty looked for all the world like he was touching down the first try of the day, stopped only by an outstanding tackle by Conor Rankin just short of the line.
Those missed opportunities were punished when, after Rankin had drawn Campbell level, Rex Tinsley went over on the wing after Campbell had moved the ball twice across the pitch.
Rankin expertly converted that try and did so again 12 minutes into the second half when captain John McKee had hauled his deserving side over the try-line once more.
Methody did enjoy periods of late possession but rarely looked like breaching Campbell's strong defence.
Champions RBAI face Royal School Armagh in the second semi-final at Kingspan Stadium tomorrow at 2.30pm.
Here's today's semi-final as it happened:
Belfast Telegraph Digital