Fingal beat Dublin City by 9 wickets in a game that was as one-sided as it gets.
There was no indication of the fireworks to follow as Dublin reached 25/0 after 7 overs, but thereafter it was all the home side.
Jeremy Martins claimed 5 for 25, including a spell of three wickets in four balls to rip the heart out of the middle order.
Mike Frost had got the initial breakthrough, while there were two wickets apiece for Nasir Totakhil and Dylan Lues as the visitors were bowled out for just 64.
Cameron Rowe then hit 10 fours and a six in a 22-ball half century to clinch a 9-wicket win in just 5.5 overs.
Esmat Ibrahimi getting the consolation wicket of North County's Suliman Safi.
CL U23 Districts League: Fingal beat Dublin City by 9 wickets
Dublin City 64 (24.2 overs; Callum O'Byrne 18; Jeremy Martins 5-25, Nasir Totakhil 2-2, Dylan Lues 2-9)
Fingal 65/1 (5.5 overs; Cameron Rowe 50*)