CARDIFF 15-37 ULSTER
Ulster scored 15 points in a four-minute spell midway through the second half to end a run of seven straight defeats at the hands of Cardiff Blues as they recorded a 37-15 Magners League win.
The home side led 15-8 at half-time but disintegrated in a second period in which they rarely crossed the halfway line.
Ulster, dominant up front throughout, began to string a few passes together to claim their first Magners League win on the road since September.
MUNSTER 27-26 SCARLETS
Second-half tries from Sam Tuitupou and Barry Murphy proved crucial for Munster as they were pushed all the way by the Scarlets.
Inspirational captain Johnathan Edwards helped himself to a brace of tries and Rhys Priestland kicked six of his eight shots at goal to give the Scarlets a chance of winning the top-of-the-table clash.
But quickfire scores from Tuitupou and Murphy, which were supplemented by Paul Warwick's 17-point haul, guided Munster to a narrow win and a seven-point lead at the summit of the Magners League.
Connacht 15-16 Ospreys
A try from replacement scrum-half Jamie Nutbrown saw the Ospreys steal a late Magners League 16-15 win from under the noses of a hard-grafting Connacht side.
The Sportsground fell silent in the 78th minute as Nutbrown exposed a defensive lapse from the hosts to score from close range, and fellow replacement Matthew Jarvis comfortably converted from in front of the posts.
That nudged the Ospreys into a 16-15 lead and the defending champions, despite being second best for much of the encounter, hung on to take the points. Miah Nikora was Connacht's only scorer on the night, converting five penalties with his left boot, while the Ospreys' out-half Matthew Morgan kicked two penalties and a drop goal on his league debut.
Leinster 27-6 Newport Gwent Dragons
Leinster fired themselves back into the Magners League top four as they collected a bonus-point win against a disappointing Dragons outfit at the RDS.
Shane Horgan scored two tries to jump to second on the league's list of all-time top try-scorers with 33 touchdowns.
The men of Gwent had precious few scoring chances, save for a dominant spell towards the end of the first half, and two penalties from out-half Jason Tovey was all they could muster.