In a game moved to their all-weather pitch, table toppers Clontarf secured their play-off place with forwards Ben Griffin, Josh Murphy, and Tony Ryan all getting on the scoresheet. A home semi-final is still up for grabs.
Dublin University 31 City of Armagh 26
Dublin University's second win in five matches has boosted their chances of avoiding relegation. Recent Ireland Under-20 debutant Davy Colbert scored the first of their four tries as they closed with five points of eighth-placed City of Armagh.
Lansdowne 19 Cork Constitution 25
This could prove to be a vital result in the battle for a home semi-final berth. The top four rivals faced off on the Aviva Stadium's back pitch, and winger Matthew Bowen's hat-trick of tries did most of the damage for second-placed Cork Constitution.
Shannon 20 Ballynahinch 14
Shannon showed a huge amount of defensive grit to hold off play-off-chasing Ballynahinch. Scores from Cian O'Halloran and Jordan Prenderville, coupled with a penalty try, steered the Limerick men to their first league win since December.
Terenure College 19 UCD 12
UCD fought back for a losing bonus point at Lakelands Park, but defending champions Terenure College remain third in the table thanks to tries from Jordan Coghlan (2) and Alan Bennie.
