Lansdowne are primed to be crowned Division 1A champions on Saturday. They come into the game boasting a 19-point lead at the top of the table. Clontarf are their chief chasers and have four games remaining, whereas Lansdowne have three.
Lansdowne have not lost in the league since Young Munster edged them out 16-15 at Tom Clifford Park in early December.
Their form since the turn of the year has been outstanding - Mike Ruddock's men have strung together eight successive wins, including bonus point victories over Dolphin, Garryowen, Cork Constitution, Young Munster, last year's winners St. Mary's College and UL Bohemians.
The headquarters club have accumulated nine try-scoring bonus points in all, with out-half Craig Ronaldson top of the league's points scoring charts and winger Cian Aherne reaching double figures in terms of tries scored.
As sides like Garryowen and Young Munster have slid away out of contention, Clontarf have shown admirable consistency in the closing weeks of the campaign.
Andy Wood's charges may not have the scoring power of Lansdowne overall, but they have played with aplomb in their recent outings on the road - they put 41 points on Old Belvedere at the start of the month and in their last game tallied up 47 away to UL Bohs.
Since losing at home to St. Mary's in early February, 'Tarf have put together a run of four bonus point victories on the trot with forwards Royce Burke Flynn, Simon Crawford and Adrian D'Arcy starring up front and top finisher Michael McGrath, Killian Lett and Sam Cronin playing key roles behind the scrum.
It took a late penalty from Ireland Under-20 centre Tom Daly to split these sides at Castle Avenue in November with Lansdowne prevailing on a 20-18 scoreline.
With the league title on the line, who will come out on top in the Easter Saturday showdown on the Aviva Stadium's back pitch? Tune in to RTÉ Two for coverage of the match, beginning at 2pm.