| A(D) | Club | VS | MD | |
|---|---|---|---|---|
| 20(31) | Bourgoin | Benetton Treviso | 18-Jan-2004 | Match Details |
| 21(351) | Scottish Borders | Scarlets | 23-Jan-2004 | Match Details |
| 24(321) | Sale Sharks | Cardiff Blues | 31-Jan-2004 | Match Details |
| 24(42) | Edinburgh Rugby | Toulouse | 10-Apr-2004 | Match Details |
| 25(282) | Leeds Tykes | Toulouse | 25-Jan-2004 | Match Details |
| 25(188) | Ospreys | Edinburgh Rugby | 23-Jan-2004 | Match Details |
| 26(274) | Leicester Tigers | Stade Francais | 06-Dec-2003 | Match Details |
| 26(285) | Cardiff Blues | Sale Sharks | 31-Jan-2004 | Match Details |
| 26(49) | Biarritz | Sale Sharks | 13-Dec-2003 | Match Details |
| 26(54) | London Wasps | Calvisano | 25-Jan-2004 | Match Details |
| 26(59) | Calvisano | Celtic Warriors | 05-Dec-2003 | Match Details |
| 26(60) | Leinster | Cardiff Blues | 23-Jan-2004 | Match Details |
| 26(72) | Benetton Treviso | Munster | 24-Jan-2004 | Match Details |
| 26(91) | Toulouse | Leeds Tykes | 12-Dec-2003 | Match Details |
| 26(92) | Gloucester | Munster | 10-Jan-2004 | Match Details |
| 27(268) | Stade Francais | Leicester Tigers | 06-Dec-2003 | Match Details |
| 27(304) | Celtic Warriors | Perpignan | 13-Dec-2003 | Match Details |
| 27(330) | Perpignan | Calvisano | 17-Jan-2004 | Match Details |
| 27(26) | Gwent Dragons | Leicester Tigers | 24-Jan-2004 | Match Details |
| 27(130) | Northampton Saints | Scarlets | 05-Dec-2003 | Match Details |
| 28(274) | Scarlets | Scottish Borders | 14-Dec-2003 | Match Details |
| 28(361) | Agen | Northampton Saints | 13-Dec-2003 | Match Details |
| 28(123) | Ulster | Gwent Dragons | 30-Jan-2004 | Match Details |
| 28(176) | Munster | Bourgoin | 31-Jan-2004 | Match Details |
MD = Match date,
A(D) = Age(days).