| A(D) | Club | VS | MD | |
|---|---|---|---|---|
| 29(97) | Benetton Treviso | Pontypridd | 31-Oct-1998 | Match Details |
| 28(109) | Stade Francais | Leinster | 25-Sep-1998 | Match Details |
| 28(355) | Ebbw Vale | Toulouse | 19-Sep-1998 | Match Details |
| 27(163) | Colomiers | Ulster | 30-Jan-1999 | Match Details |
| 27(257) | Scarlets | Stade Francais | 31-Oct-1998 | Match Details |
| 26(317) | Toulouse | Edinburgh Rugby | 31-Oct-1998 | Match Details |
| 25(165) | Begles-Bordeaux | Stade Francais | 19-Sep-1998 | Match Details |
| 25(92) | Glasgow Warriors | Benetton Treviso | 18-Oct-1998 | Match Details |
| 25(53) | Perpignan | Padova | 27-Sep-1998 | Match Details |
| 25(319) | Ulster | Toulouse | 12-Dec-1998 | Match Details |
| 25(272) | Edinburgh Rugby | Toulouse | 11-Oct-1998 | Match Details |
| 24(150) | Pontypridd | Colomiers | 26-Sep-1998 | Match Details |
| 24(258) | Padova | Munster | 19-Sep-1998 | Match Details |
| 23(183) | Neath | Munster | 17-Oct-1998 | Match Details |
| 22(346) | Munster | Padova | 08-Nov-1998 | Match Details |
| 21(165) | Leinster | Stade Francais | 17-Oct-1998 | Match Details |
MD = Match date,
A(D) = Age(days).