| A(D) | Club | VS | MD | |
|---|---|---|---|---|
| 8(115) | Grenoble | Northampton Saints | 08-Jan-2000 | Match Details |
| 9(131) | Padova | Swansea | 19-Nov-1999 | Match Details |
| 16(59) | Neath | Edinburgh Rugby | 08-Jan-2000 | Match Details |
| 16(160) | Leinster | Stade Francais | 17-Dec-1999 | Match Details |
| 20(2) | Swansea | Padova | 19-Nov-1999 | Match Details |
| 20(38) | Bourgoin | Ulster | 14-Jan-2000 | Match Details |
| 21(70) | Colomiers | Munster | 18-Dec-1999 | Match Details |
| 22(188) | Saracens | Pontypridd | 17-Dec-1999 | Match Details |
| 22(253) | Bath | Padova | 08-Jan-2000 | Match Details |
| 22(293) | Leicester Tigers | Glasgow Warriors | 11-Dec-1999 | Match Details |
| 22(333) | Edinburgh Rugby | Neath | 27-Nov-1999 | Match Details |
| 23(341) | Ulster | Scarlets | 10-Dec-1999 | Match Details |
| 23(110) | Cardiff Blues | Benetton Treviso | 11-Dec-1999 | Match Details |
| 24(247) | London Wasps | Scarlets | 20-Nov-1999 | Match Details |
| 24(254) | Pontypridd | Colomiers | 08-Jan-2000 | Match Details |
| 24(85) | Munster | Colomiers | 11-Dec-1999 | Match Details |
| 25(26) | Clermont Auvergne | Harlequins | 18-Dec-1999 | Match Details |
| 25(121) | Glasgow Warriors | Stade Francais | 20-Nov-1999 | Match Details |
| 25(144) | Scarlets | Ulster | 18-Dec-1999 | Match Details |
| 26(142) | Northampton Saints | Neath | 20-Nov-1999 | Match Details |
| 27(319) | Benetton Treviso | Harlequins | 08-Jan-2000 | Match Details |
| 27(111) | Stade Francais | Glasgow Warriors | 20-Nov-1999 | Match Details |
| 28(317) | Toulouse | Padova | 18-Dec-1999 | Match Details |
| 28(7) | Harlequins | Cardiff Blues | 19-Nov-1999 | Match Details |
MD = Match date,
A(D) = Age(days).