In Stradbrook, two Conor Kilroy penalties had Blackrock six points clear at the break. David McAllister kicked a 47nd minute penalty for Clontarf but with less than five minutes to go Paul Drew scored a try with Kilroy adding the points. Clontarf wing Daragh Higgins scored in injury time to earn his side a bonus point. In Belfield the home side raced into a 15 point by half time and extended that lead with a penalty from Niall McNamara eleven minutes into the restart. However, Shannon's fight-back began with a Tommy Cregan penalty and his conversion of John Lacey's 67th minute try brought the visitors within five points of the lead. Cregan then landed another penalty (18-16) with five minutes to go to set up a tense finish. Cregan saw a long range penalty come back off the crossbar and Andrew Thompson's drop-goal didn't have the height to deny the students.
Belfast Harlequins ran in five tries in their 31-17 win over Lansdowne The home side led 19-10 at half time thanks to tries from Chris McCarey and Andy Park. Two second half tries from the outstanding Reece Spee ensured that this game was in safe keeping long before the final whistle.
AIB League Division One:Belfast Harlequins 31-17 LansdowneBlackrock College 13-10 ClontarfCo Carlow 36-6 St. Mary's CollegeDolphin 24-24 BallymenaGalwegians 24-37 Cork ConstitutionGarryowen 10-28 BuccaneersU.C.D. 18 -16 ShannonDungannon - Free
AIB League Division TwoBallynahinch 14-22 Terenure CollegeMalone 17-19 Dublin UniversityMidleton Barnhall
AIB League Division ThreeArds v Ballina - CancelledClonakilty 20-13 PortadownHighfield 24-10 ConnemaraOld Wesley 19-16 InstoniansQueens University 18-9 CorinthiansSkerries 19-17 NaasSuttonians 16-27 BanbridgeWanderers 40-11 City of Derry.Greystones - Free.