| A(D) | Club | VS | MD | |
|---|---|---|---|---|
| 25(133) | Glasgow Warriors | Montpellier | 08-Dec-2017 | Match Details |
| 26(227) | Bath | Benetton Treviso | 14-Oct-2017 | Match Details |
| 26(268) | Harlequins | Ulster | 15-Dec-2017 | Match Details |
| 26(273) | Leinster | Montpellier | 14-Oct-2017 | Match Details |
| 26(338) | Scarlets | Toulon | 15-Oct-2017 | Match Details |
| 26(339) | Benetton Treviso | Toulon | 14-Jan-2018 | Match Details |
| 26(112) | La Rochelle | Scarlets | 30-Mar-2018 | Match Details |
| 26(162) | Ospreys | Saracens | 21-Oct-2017 | Match Details |
| 27(230) | Leicester Tigers | Castres | 14-Jan-2018 | Match Details |
| 27(269) | Montpellier | Exeter Chiefs | 13-Jan-2018 | Match Details |
| 27(1) | Northampton Saints | Ospreys | 17-Dec-2017 | Match Details |
| 27(6) | Ulster | Harlequins | 10-Dec-2017 | Match Details |
| 27(28) | Munster | Leicester Tigers | 09-Dec-2017 | Match Details |
| 27(42) | Exeter Chiefs | Leinster | 16-Dec-2017 | Match Details |
| 28(204) | London Wasps | Ulster | 21-Jan-2018 | Match Details |
| 28(220) | Saracens | Clermont Auvergne | 17-Dec-2017 | Match Details |
| 28(227) | Clermont Auvergne | Racing CF | 01-Apr-2018 | Match Details |
| 28(284) | Racing CF | Leinster | 12-May-2018 | Match Details |
| 28(330) | Toulon | Benetton Treviso | 21-Oct-2017 | Match Details |
| 29(65) | Castres | Racing CF | 16-Dec-2017 | Match Details |
MD = Match date,
A(D) = Age(days).