Meanwhile, Leinster returned to their winning ways by beating reigning champions Munster on their home turf to keep on course for a home semi-final.
That result meant the Ospreys reclaimed the second home play-off spot, but with just three points separating the teams in second to fifth position, there is still everything to play for when the league resumes on April 13.
2011/12 RABODIRECT PRO12 - AFTER ROUND 19:
TOP TRY SCORERS -
12 - Tim Visser (Edinburgh)
7 - Ian Madigan (Leinster)
6 - Alex Cuthbert (Cardiff Blues), Simon Zebo (Munster)
5 - Danny Barnes (Munster), Darren Cave (Ulster), Tonderai Chavhanga (Newport Gwent Dragons), Andy Fenby (Scarlets), Tom James (Cardiff Blues), Ludovico Nitoglia (Benetton Treviso), Brendan Williams (Benetton Treviso), Nick Williams (Aironi Rugby)
4 - Leo Auva'a (Leinster), Fionn Carr (Leinster), Hanno Dirksen (Ospreys), Casey Laulala (Cardiff Blues), Tiernan O'Halloran (Connacht), Rhys Thomas (Scarlets), Rhys Webb (Ospreys)
TOP POINTS SCORERS -
181 - Dan Biggar (Ospreys) (23 conversions, 42 penalty goals and 3 drop goals)
169 - Duncan Weir (Glasgow Warriors) (1 try, 10 conversions, 46 penalty goals and 2 drop goals)
147 - Ian Keatley (Munster) (21 conversions and 35 penalty goals)
139 - Greig Laidlaw (Edinburgh) (1 try, 19 conversions and 32 penalty goals)
133 - Jason Tovey (Newport Gwent Dragons) (1 try, 10 conversions and 36 penalty goals)
127 - Kris Burton (Benetton Treviso) (1 try, 16 conversions, 24 penalty goals and 6 drop goals)
109 - Ian Humphreys (Ulster) (3 tries, 14 conversions and 22 penalty goals)
108 - Isa Nacewa (Leinster) (2 tries, 10 conversions and 26 penalty goals)
BEST PLACE-KICKERS -
100% - Fergus McFadden (Leinster) (13 successful kicks from 13 attempts)
169 - Duncan Weir (Glasgow Warriors)
85.71% - Ronan O'Gara (Munster) (12/14)
84.85% - Jason Tovey (Newport Gwent Dragons) (28/33)
84.44% - Greig Laidlaw (Edinburgh) (38/45)
84.21% - Jonathan Sexton (Leinster) (16/19)
82% - Duncan Weir (Glasgow Warriors) (41/50)
80% - Dan Biggar (Ospreys) (36/45), Willem de Waal (Benetton Treviso) (8/10)
77.14% - Kris Burton (Benetton Treviso) (27/35)
76.09% - Ian Keatley (Munster) (35/46)
75% - Isa Nacewa (Leinster) (24/32), Ceri Sweeney (Cardiff Blues) (24/32)
73.91% - Dan Newton (Scarlets) (17/23)
73.33% - Dan Parks (Cardiff Blues) (11/15)
71.43% - Stephen Jones (Scarlets) (10/14)
69.57% - Niall O'Connor (Connacht) (16/23)
66.67% - Harry Leonard (Edinburgh) (8/12)
64.71% - Matthew Morgan (Ospreys) (11/17)
60% - Aled Thomas (Scarlets) (9/15), Tobie Botes (Benetton Treviso) (6/10)
58.33% - Ian Humphreys (Ulster) (28/48)
52.94% - Naas Olivier (Aironi Rugby) (18/34)
44.44% - Matthew Jarvis (Connacht) (8/18)
Qual: 10 place-kicks at goal
RESULTS ROUND-UP -
Friday, December 2, 2011 at Ravenhill
Ulster (8) 24: Stephen Ferris(2T), Ian Humphreys(C/4P)
Scarlets (10) 17: Sean Lamont(T), Viliame Iongi(T), Kieran Murphy(T), Stephen Jones(C)
Attendance: 8.117
Ulster v Scarlets Match Report
Friday, December 2, 2011 at the Sportsground
Connacht (7) 13: David McSharry(T), Niall O'Connor(C/2P)
Benetton Treviso (15) 15: Brendan Williams(T), Tommaso Iannone(T), Willem de Waal(C/P)
Attendance: 3,614
Connacht v Benetton Treviso Match Report
Friday, December 2, 2011 at Murrayfield
Edinburgh (31) 50: David Denton(T), Tim Visser(3T), Nick de Luca(T), Lee Jones(T), Chris Leck(T), Greig Laidlaw(5C/P), Phil Godman(C)
Aironi Rugby (5) 10: George Fabio Biagi(T), Filippo Ferrarini(T)
Attendance: 4,403
Friday, December 2, 2011 at the RDS
Leinster (13) 52: Isaac Boss(T), Nathan White(T), Ian Madigan(T), David Kearney(2T), Leo Auva'a(T), Fergus McFadden(3C/3P/D), Jonathan Sexton(2C)
Cardiff Blues (9) 9: Ceri Sweeney(3P)
Attendance: 16,347
Leinster v Cardiff Blues Match Report
Saturday, December 3, 2011 at the Liberty Stadium
Ospreys (6) 19: Richard Fussell(T), Rhys Webb(T), Matthew Morgan(3P)
Munster (10) 13: Doug Howlett(T), Ian Keatley(C/P), Ronan O'Gara(P)
Attendance: 5,783
Ospreys v Munster Match Report
Sunday, December 4, 2011 at Rodney Parade
Newport Gwent Dragons (0) 14: Tom Riley(T), Jason Tovey(2P), Steffan Jones(P)
Glasgow Warriors (3) 14: Scott Wight(T), Ruaridh Jackson(3P)
Attendance: 5,273
