| Date | Time |
| Home | Score | Away | Venue | TV/Att |
|
| September 2008 |
| Fri 5 Sep | 18:30 |
| Connacht | 3 - 16 | Ospreys | Sportsground | 829 | Report |
| Fri 5 Sep | 19:05 |
| Dragons | 6 - 12 | Glasgow | Rodney Parade | 4,113 | Report |
| Fri 5 Sep | 19:30 |
| Edinburgh | 15 - 20 | Munster | Murrayfield | 5,443 | Report |
| Fri 5 Sep | 19:30 |
| Ulster | 9 - 16 | Scarlets | Ravenhill | 7,368 | Report |
| Sat 6 Sep | 18:30 |
| Blues | 16 - 16 | Leinster | Cardiff Arms Park | 8,017 | Report |
| Tue 9 Sep | 19:35 |
| Ospreys | 32 - 10 | Blues | Liberty Stadium | 8,499 | Report |
| Wed 10 Sep | 19:05 |
| Dragons | 25 - 27 | Scarlets | Rodney Parade | 5,057 | Report |
| Fri 12 Sep | 19:05 |
| Blues | 16 - 15 | Ulster | Cardiff Arms Park | 8,619 | Report |
| Fri 12 Sep | 19:30 |
| Glasgow | 18 - 21 | Ospreys | Firhill Stadium | 2,651 | Report |
| Fri 12 Sep | 19:30 |
| Leinster | 52 - 6 | Edinburgh | Royal Dublin Society | 14,840 | Report |
| Sat 13 Sep | 17:30 |
| Scarlets | 45 - 3 | Connacht | Stradey Park | 6,041 | Report |
| Sun 14 Sep | 18:00 |
| Munster | 50 - 6 | Dragons | Musgrave Park | 8,685 | Report |
| Fri 19 Sep | 18:30 |
| Connacht | 15 - 8 | Glasgow | Sportsground | 1,252 | Report |
| Fri 19 Sep | 19:30 |
| Edinburgh | 32 - 12 | Scarlets | Murrayfield | 2,655 | Report |
| Fri 19 Sep | 19:30 |
| Ulster | 14 - 16 | Dragons | Ravenhill | 7,885 | Report |
| Fri 19 Sep | 19:35 |
| Leinster | 19 - 13 | Ospreys | Royal Dublin Society | 15,140 | Report |
| Sat 20 Sep | 19:30 |
| Munster | 28 - 20 | Blues | Musgrave Park | 8,685 | Report |
| Fri 26 Sep | 19:05 |
| Blues | 58 - 0 | Connacht | Cardiff Arms Park | 7,542 | Report |
| Fri 26 Sep | 19:30 |
| Glasgow | 34 - 20 | Scarlets | Firhill Stadium | 2,450 | Report |
| Fri 26 Sep | 19:30 |
| Dragons | 11 - 9 | Edinburgh | Rodney Parade | 4,676 | Report |
| Sat 27 Sep | 17:30 |
| Ospreys | 43 - 0 | Ulster | Liberty Stadium | 7,225 | Report |
| Sun 28 Sep | 19:00 |
| Leinster | 0 - 18 | Munster | Royal Dublin Society | 18,500 | Report |
| October 2008 |
| Fri 3 Oct | 19:30 |
| Ulster | 13 - 9 | Edinburgh | Ravenhill | 8,418 | Report |
| Sat 4 Oct | 19:00 |
| Munster | 25 - 17 | Glasgow | Thomond Park Stadium | 22,885 | Report |
| Sun 5 Oct | 18:00 |
| Connacht | 19 - 18 | Leinster | Sportsground | 2,820 | Report |
| Fri 24 Oct | 18:30 |
| Connacht | 14 - 27 | Edinburgh | Sportsground | 1,868 | Report |
| Fri 24 Oct | 19:30 |
| Glasgow | 15 - 12 | Leinster | Firhill Stadium | 2,523 | Report |
| Sat 25 Oct | 19:30 |
| Ulster | 22 - 6 | Munster | Ravenhill | 10,058 | Report |
| November 2008 |
| Fri 28 Nov | 19:05 |
| Scarlets | 16 - 18 | Munster | Parc y Scarlets | 8,435 | Report |
| Fri 28 Nov | 19:30 |
| Edinburgh | 32 - 16 | Ospreys | Murrayfield | 2,670 | Report |
| Fri 28 Nov | 19:30 |
| Glasgow | 28 - 0 | Blues | Firhill Stadium | 2,364 | Report |
| Fri 28 Nov | 19:30 |
| Ulster | 53 - 13 | Connacht | Ravenhill | 8,841 | Report |
| Sat 29 Nov | 17:30 |
| Leinster | 29 - 13 | Dragons | Royal Dublin Society | 15,240 | Report |
| December 2008 |
| Fri 19 Dec | 19:35 |
| Dragons | 30 - 24 | Ospreys | Rodney Parade | 7,138 | Report |
| Sat 20 Dec | 17:30 |
| Scarlets | 27 - 13 | Blues | Parc y Scarlets | 7,610 | Report |
| Fri 26 Dec | 14:05 |
| Dragons | 19 - 21 | Blues | Rodney Parade | 10,180 | Report |
| Fri 26 Dec | 19:30 |
| Edinburgh | 39 - 6 | Glasgow | Murrayfield | 12,534 | Report |
| Sat 27 Dec | 17:30 |
| Ospreys | 20 - 6 | Scarlets | Liberty Stadium | 20,520 | Report |
| Sat 27 Dec | 19:30 |
| Ulster | 13 - 21 | Leinster | Ravenhill | 13,500 | Report |
| Sun 28 Dec | 18:00 |
| Connacht | 12 - 6 | Munster | Sportsground | 5,000 | Report |
| Wed 31 Dec | 14:05 |
| Blues | 12 - 16 | Ospreys | Cardiff Arms Park | 12,813 | Report |
| January 2009 |
| Thu 1 Jan | 17:15 |
| Scarlets | 29 - 24 | Dragons | Parc y Scarlets | 7,050 | Report |
| Fri 2 Jan | 15:00 |
| Glasgow | 25 - 20 | Edinburgh | Firhill Stadium | 6,665 | Report |
| Fri 2 Jan | 19:30 |
| Leinster | 26 - 18 | Connacht | Royal Dublin Society | 16,350 | Report |
| Sat 3 Jan | 19:30 |
| Munster | 11 - 37 | Ulster | Thomond Park Stadium | 25,623 | Report |
| Fri 9 Jan | 18:30 |
| Connacht | 14 - 17 | Scarlets | Sportsground | 2,063 | Report |
| Fri 9 Jan | 19:05 |
| Ospreys | 21 - 25 | Munster | Liberty Stadium | 9,003 | Report |
| Fri 9 Jan | 19:30 |
| Glasgow | 20 - 25 | Dragons | Firhill Stadium | 2,217 | Report |
| Fri 9 Jan | 19:45 |
| Edinburgh | 21 - 15 | Ulster | Murrayfield | 3,393 | Report |
| Sat 10 Jan | 19:30 |
| Leinster | 21 - 20 | Blues | Royal Dublin Society | 14,470 | Report |
| February 2009 |
| Fri 20 Feb | 19:05 |
| Blues | 34 - 30 | Glasgow | Cardiff Arms Park | 7,603 | Report |
| Sat 21 Feb | 17:30 |
| Scarlets | 17 - 31 | Leinster | Parc y Scarlets | 6,436 | Report |
| Sat 21 Feb | 19:30 |
| Munster | 28 - 14 | Edinburgh | Musgrave Park | 8,685 | Report |
| Sun 22 Feb | 14:15 |
| Ospreys | 22 - 10 | Connacht | Liberty Stadium | 6,127 | Report |
| Sun 22 Feb | 16:10 |
| Dragons | 26 - 16 | Ulster | Rodney Parade | 6,112 | Report |
| March 2009 |
| Fri 6 Mar | 18:30 |
| Connacht | 14 - 19 | Blues | Sportsground | 1,373 | Report |
| Fri 6 Mar | 19:05 |
| Ospreys | 8 - 13 | Leinster | Liberty Stadium | 8,046 | Report |
| Sat 7 Mar | 17:30 |
| Dragons | 9 - 20 | Munster | Rodney Parade | 6,865 | Report |
| Sat 7 Mar | 19:30 |
| Ulster | 12 - 0 | Glasgow | Ravenhill | 8,286 | Report |
| Sun 8 Mar | 16:10 |
| Scarlets | 13 - 6 | Edinburgh | Parc y Scarlets | 6,302 | Report |
| Fri 27 Mar | 19:30 |
| Edinburgh | 32 - 5 | Connacht | Murrayfield | 2,208 | Report |
| Fri 27 Mar | 19:45 |
| Glasgow | 13 - 26 | Munster | Firhill Stadium | 3,615 | Report |
| Sun 29 Mar | 17:30 |
| Leinster | 32 - 6 | Ulster | Royal Dublin Society | 15,940 | Report |
| April 2009 |
| Fri 3 Apr | 18:30 |
| Connacht | 39 - 17 | Dragons | Sportsground | 1,272 | Report |
| Fri 3 Apr | 19:30 |
| Edinburgh | 16 - 3 | Blues | Murrayfield | 2,540 | Report |
| Fri 3 Apr | 19:35 |
| Ulster | 13 - 16 | Ospreys | Ravenhill | 9,600 | Report |
| Sat 4 Apr | 17:30 |
| Scarlets | 21 - 38 | Glasgow | Parc y Scarlets | 6,103 | More |
| Sat 4 Apr | 19:30 |
| Munster | 22 - 5 | Leinster | Thomond Park Stadium | 26,043 | Report |
| Fri 17 Apr | 19:30 |
| Glasgow | 19 - 20 | Ulster | Firhill Stadium | 2,960 | Report |
| Fri 17 Apr | 19:45 |
| Edinburgh | 27 - 16 | Leinster | Murrayfield | 2,747 | Report |
| Sat 18 Apr | 17:30 |
| Scarlets | 19 - 28 | Ospreys | Parc y Scarlets | 11,444 | Report |
| Sat 18 Apr | 19:30 |
| Munster | 25 - 10 | Connacht | Thomond Park Stadium | 26,043 | Report |
| Fri 24 Apr | 19:30 |
| Ulster | 9 - 11 | Blues | Ravenhill | 7,809 | Report |
| Fri 24 Apr | 19:35 |
| Munster | 29 - 10 | Scarlets | Musgrave Park | 8,685 | Report |
| Sat 25 Apr | 19:30 |
| Ospreys | 30 - 32 | Edinburgh | Liberty Stadium | 6,015 | Report |
| Sat 25 Apr | 19:35 |
| Leinster | 36 - 13 | Glasgow | Royal Dublin Society | 10,910 | Report |
| Sun 26 Apr | 17:05 |
| Dragons | 27 - 14 | Connacht | Rodney Parade | 5,233 | Report |
| Thu 30 Apr | 19:05 |
| Ospreys | 27 - 18 | Dragons | Liberty Stadium | 5,010 | Report |
| May 2009 |
| Wed 6 May | 19:05 |
| Blues | 26 - 12 | Dragons | Cardiff Arms Park | 6,608 | Report |
| Fri 8 May | 19:00 |
| Connacht | 12 - 14 | Ulster | Sportsground | 1,425 | Report |
| Fri 8 May | 19:45 |
| Leinster | 45 - 8 | Scarlets | Royal Dublin Society | 11,160 | Report |
| Sat 9 May | 14:30 |
| Edinburgh | 43 - 3 | Dragons | Murrayfield | 2,105 | Report |
| Sun 10 May | 14:35 |
| Ospreys | 34 - 23 | Glasgow | Liberty Stadium | 5,204 | Report |
| Sun 10 May | 16:35 |
| Blues | 20 - 12 | Munster | Cardiff Arms Park | 7,428 | Report |
| Wed 13 May | 19:35 |
| Blues | 9 - 30 | Scarlets | Cardiff Arms Park | 8,212 | Report |
| Fri 15 May | 19:45 |
| Glasgow | 30 - 9 | Connacht | Firhill Stadium | 1,851 | Report |
| Fri 15 May | 19:45 |
| Munster | 36 - 10 | Ospreys | Thomond Park Stadium | 26,043 | Report |
| Sat 16 May | 17:30 |
| Dragons | 18 - 9 | Leinster | Rodney Parade | 5,426 | Report |
| Sat 16 May | 19:30 |
| Scarlets | 43 - 17 | Ulster | Parc y Scarlets | 6,219 | Report |
| Sun 17 May | 15:35 |
| Blues | 14 - 36 | Edinburgh | Cardiff Arms Park | 11,212 | Report |
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