| A(D) | Club | VS | MD | |
|---|---|---|---|---|
| 31(226) | Cardiff Blues | Zebre | 04-Nov-2017 | Match Details |
| 29(34) | Ulster | Cheetahs | 01-Sep-2017 | Match Details |
| 29(270) | Benetton Treviso | Zebre | 23-Dec-2017 | Match Details |
| 29(258) | Ospreys | Edinburgh Rugby | 04-Nov-2017 | Match Details |
| 28(102) | Munster | Leinster | 07-Oct-2017 | Match Details |
| 28(59) | Leinster | Edinburgh Rugby | 29-Sep-2017 | Match Details |
| 28(334) | Scarlets | Ospreys | 26-Dec-2017 | Match Details |
| 28(324) | Southern Kings | Benetton Treviso | 07-Oct-2017 | Match Details |
| 27(122) | Cheetahs | Benetton Treviso | 06-Jan-2018 | Match Details |
| 27(122) | Connacht | Glasgow Warriors | 13-Apr-2018 | Match Details |
| 27(99) | Edinburgh Rugby | Ospreys | 04-Nov-2017 | Match Details |
| 27(47) | Glasgow Warriors | Ulster | 21-Apr-2018 | Match Details |
| 27(312) | Zebre | Leinster | 07-Apr-2018 | Match Details |
| 26(167) | Gwent Dragons | Edinburgh Rugby | 08-Sep-2017 | Match Details |
MD = Match date,
A(D) = Age(days).