Three goals in three second half minutes gave Leinster the all-important five goal cushion to win the Senior Interprovincial title on goal difference at Grange Road.
Alan Sothern scored the only goal of the first half as the Blues sought to outdo Ulster’s 5-1 win over Munster.
And it was the Pembroke starlet who was on the mark again just after the break when he doubled the lead from a penalty corner.
5-0 looked remote with 11 minutes left but Sothern first set up Mitch Darling before completing his hat-trick seconds later.
And the rout was complete in the 61st minute when Rovers’ Darling got the fifth to give the Blues their first Interpro title since 2001.