| A(D) | Club | VS | MD | |
|---|---|---|---|---|
| 29(260) | Toulouse | Ebbw Vale | 19-Sep-1998 | Match Details |
| 28(204) | Stade Francais | Ulster | 09-Jan-1999 | Match Details |
| 27(113) | Edinburgh Rugby | Toulouse | 31-Oct-1998 | Match Details |
| 27(78) | Colomiers | Perpignan | 09-Jan-1999 | Match Details |
| 27(59) | Benetton Treviso | Glasgow Warriors | 18-Oct-1998 | Match Details |
| 27(36) | Ebbw Vale | Toulouse | 19-Sep-1998 | Match Details |
| 27(355) | Begles-Bordeaux | Leinster | 31-Oct-1998 | Match Details |
| 27(300) | Scarlets | Perpignan | 12-Dec-1998 | Match Details |
| 26(305) | Ulster | Toulouse | 12-Dec-1998 | Match Details |
| 26(240) | Pontypridd | Stade Francais | 12-Dec-1998 | Match Details |
| 25(110) | Neath | Munster | 26-Sep-1998 | Match Details |
| 25(102) | Perpignan | Padova | 27-Sep-1998 | Match Details |
| 23(129) | Glasgow Warriors | Benetton Treviso | 18-Oct-1998 | Match Details |
| 21(25) | Munster | Padova | 08-Nov-1998 | Match Details |
| 20(23) | Padova | Perpignan | 17-Oct-1998 | Match Details |
| 19(82) | Leinster | Scarlets | 06-Nov-1998 | Match Details |
MD = Match date,
A(D) = Age(days).