Clontarf bring Dolphin's perfect start to an end
Dolphin's winning start to the season came unstuck at home as Clontarf secured a victory which sees them leap over the Cork side into third place in Division 1A.
Tries from Michael McGrath, Max McFarland and Colm O'Shea secured a 21-15 victory for the visitors, and though Dolphin twice crossed the try-line after the restart, those Cian Bohane and John Gleeson scores could not complete the comeback.
Young Munster also surrendered their winning start when they went down 29-22 away to a Lansdowne side who had lost their opening two matches. The champions picked up a bonus point as well as Cian Aherne, Willie Earle, Mark Roche and Tyrone Moran touched down, with Brian Haugh getting the Limerick side's only try.
UCD made it three wins from three outings when they travelled to Limerick and eased past Garryowen 25-11.
Two penalties from Niall Earls saw the students lead 6-3 at half-time but while Harry McNulty crossed for a try and Jamie Gavin scored a second penalty for Garryowen, UCD pulled away for victory with tries from Stephen Murphy, Dan Leavy and Alex Kelly.
Cork Con are the only other unbeaten team in the top flight but they had to settle for a 3-3 away draw with Old Belvedere, as Josh Glynn for the home side and Johnny Holland for the visitors exchanging penalties in the second-half of a drab affair.
Shannon finally picked up their first Division 1B win of the season, 17-6 against Dungannon. Duncan Casey and Luke O'Dea touched down in the win, but a hamstring injury to the Munster winger on his comeback will be monitored in the coming days.
UL Bohs made it back-to-back wins with a bonus-point triumph over Malone, Rory White (two), Eoin Sweeney, John Sutton and Adrian Enright all touching down for the students, who won 31-6.
In Division 2A, UCC edged their Cork derby with Highfield 15-7, while it was defeats all round for the rest of the Munster contingent, with Bruff, Cashel and Old Crescent all losing out on home soil.
Thomond took the bragging rights from Division 2B's Limerick derby as they edged past Richmond by 19-13, while Nenagh Ormond beat Sunday's Well 20-7 to remain top and Midleton picked up an 11-9 win at home to Suttonians.