Lansdowne gave another significant warning to their Ulster Bank League title rivals with a brilliant 38-8 bonus-point victory over Clontarf on the Aviva Stadium's back pitch, extending their lead at the top of Division 1A to 13 points.
The ever-impressive Scott Deasy ran in an intercept try to put the seal on their 11th straight league win and complete his own 18-point haul; he also provided two assists.
The hosts' other tries were scored by Adam Leavy, Daniel McEvoy, Alan Bennie and Aaron Conneely. Clontarf slipped from second to fourth.
Like Lansdowne, Cork Constitution are on their travels in next Saturday's Bateman Cup semi-finals. They warmed up for their trip to Armagh with a 26-0 dismissal of Buccaneers which now sees them lead the chasing pack. Joe White, Sean Duffy, Luke Cahill and Ned Hodson got tries.
Dublin University have climbed out of the bottom two thanks to a 25-10 defeat of St Mary's. Returning out-half Jack McDermott played a leading role, kicking 10 points and scoring a try.
Sam Coghlan Murray came back to haunt his former club UCD as he scored two tries in a tremendous 31-26 comeback victory for Terenure College, who trailed 26-7 at the break.