| A(D) | Club | VS | MD | |
|---|---|---|---|---|
| 29(155) | Southern Kings | Benetton Treviso | 24-Mar-2018 | Match Details |
| 29(142) | Ulster | Gwent Dragons | 01-Dec-2017 | Match Details |
| 29(133) | Benetton Treviso | Zebre | 28-Apr-2018 | Match Details |
| 29(201) | Leinster | Connacht | 01-Jan-2018 | Match Details |
| 28(134) | Ospreys | Scarlets | 07-Oct-2017 | Match Details |
| 28(91) | Glasgow Warriors | Connacht | 13-Apr-2018 | Match Details |
| 28(210) | Munster | Connacht | 06-Jan-2018 | Match Details |
| 28(207) | Gwent Dragons | Connacht | 15-Sep-2017 | Match Details |
| 27(159) | Edinburgh Rugby | Leinster | 29-Sep-2017 | Match Details |
| 27(57) | Cardiff Blues | Southern Kings | 14-Apr-2018 | Match Details |
| 27(43) | Scarlets | Edinburgh Rugby | 23-Sep-2017 | Match Details |
| 27(333) | Connacht | Leinster | 28-Apr-2018 | Match Details |
| 27(241) | Cheetahs | Southern Kings | 20-Jan-2018 | Match Details |
| 26(284) | Zebre | Glasgow Warriors | 23-Mar-2018 | Match Details |
MD = Match date,
A(D) = Age(days).