Although Cork Constitution were beaten and Shannon weren't playing, they will still have home advantage in the semi finals against Bucaneers and Belfast Harelquins respectively. Con's conquerors, Lansdowne ensured their place in the top tier with that 18-0 win on a muddy back pitch at Lansdowne Road, their final try coming in injury time from Stephen O'Connor but at a time when the outcome was beyond any doubt. All the incentive was in the Lansdowne camp who knew they needed a win to avoid relegation while Con were already home and hosed.
Dolphin and St Mary's both managed to pick up bonus points but both are relegated with Galwegians sealing the fate of the Templeville Road side thanks to a 19-13 victory over Brent Pope's side.
In Division Two, Old Belvedere dropped from first to fourth after they were blitzed in the opening half by UL Bohemians - who led by 24 points - at Thomond Park and Dublin University took full advantage gaining full points with a 34-3 over Sunday's Well to earn themselves division one football next season.
Division One: Belfast Harlequins 19-0 Ballymena Dolphin 6-13 Blackrock College Dungannon 3-9 Buccaneers Galwegians 19-13 St. Mary's College Garryowen 15-14 Co. Carlow Lansdowne 18-0 Cork Constitution U.C.D. 0-21 Clontarf. Shannon - Free.
Division Two: Barnhall 17-5 Ballynahinch Dublin University 34-3 Sunday's Well DLSP 20-0 Malone Midleton 10-9 Thomond Old Crescent 10-17 UCC Terenure College 6-18 Waterpark UL Bohemians 24-7 Old Belvedere Young Munster 17-24 Bective Rangers.
Division Three: Ards 0-11 Instonians Connemara 9-3 Banbridge Greystones 31-10 Naas Highfield 26-17 Corinthians Old Wesley 3-28 Wanderers Queens University 3-12 Clonakilty Skerries 33-13 Portadown Suttonians 9-19 City of Derry.