It's another youth All-Ireland for Rush after they beat Instonians by seven wickets in the Under 15 semi-final at Kenure.
Batting first, the NCU side lost two early wickets as Cian Rock (2-30) removed both openers.
James Rose hit 6 fours in a top score of 46, adding 60 for the third wicket with Thomas Johnston, who made 30.
Rory Ellerby thumped two sixes in a quick-fire 34 to get Instonians up to 159 all out in their 40 overs.
Diarmuid Burke (2-21) and Nathan McGuire (2-36) also picked up two wickets in a fine display by the bowling unit.
McGuire then dominated an opening stand of 66 with Jack McGee (13) as Rush raced out of the blocks.
The Irish youth international hit 12 fours and a six as he top-scored with 80, adding a further 84 for the second wicket with Daniel Thorne, who hit 4 fours and 2 sixes in his 34.
Both fell with just 10 needed, but Rush secured a comprehensive 7-wicket win just before the half-way stage.
Matthew Humphreys, Adam Kennedy and James Rose were the successful wicket takers for Inst.
Rush now face a trip to the NW to face the winners of the regional final there.
That is still under debate with Eglinton due to face Bready.
However it is believed St Johnston have lodged an appeal over their semi-final loss to Bready, and that they have been successful and will now play Eglinton in the decider rather than the Magheramason side.
All-Ireland U15 semi-final
At Kenure, Rush beat Instonians by 7 wickets
Instonians 159 all out (40 overs; James Rose 46, Rory Ellerby 34, Thomas Johnston 30; Diarmuid Burke 2-21, Cian Rock 2-30, Nathan McGuire 2-36)
Rush 160-3 (19 overs; Nathan McGuire 80, Daniel Thorne 36)