This was a courageous effort by Antrim Grammar but they were unable to match the overall strength and speed of Friends' School in Lisburn.
The home team set the pace early on when in the first minute Ben McCaughey kicked a penalty. Four minutes later following a line-out captain and flanker Adam Milligan ended a move for McCaughey to add the points.
Then a break by winger David Newell around his own 22 led to Milligan running in for his second and Friends' were 17-0 in front.
Antrim replied when scrum-half Callum Hull cut through the defence and added the points. The fightback was shortlived as Friends went on to take a 38-7 interval advantage lead.
Another move started inside the 22 with Milligan, Daniel Patterson and McCaughey involved before centre George Pringle touched down for another try. At this stage Friends' were running the ball with conviction and out-half David Stewart was next to score before it was the turn of Newell to add the fifth.
McCaughey converted all the tries.
From a scrum the ball was swung along the backs for winger Bradley Mulholland to score before Newell added his second which was goaled. With the last move of the tie Pringle ran in from far out and kicked the conversion.
Coach Stephen Robinson was pleased but accepted it will be a different matter against Coleraine Grammar.
"It was a productive run-out and I thought the tries from George Pringle and David Newell were particularly outstanding," he stated.