[4] Cardiff Blues 35-17 Ulster [4] 2018-03-24 15:15
Stadium: Cardiff Arms Park Round: 18
Referee: Mike Adamson
Head to Head
| United Rugby Championship | 2017/04/07 18:35 | Ulster v Cardiff Blues | D | 24-24 |
| Pro 14 Rugby | 2016/12/03 17:15 | Cardiff Blues v Ulster | L | 22-35 |
| United Rugby Championship | 2016/02/28 14:30 | Cardiff Blues v Ulster | W | 23-13 |
| United Rugby Championship | 2015/10/23 18:35 | Ulster v Cardiff Blues | L | 24-17 |
| United Rugby Championship | 2015/03/27 19:35 | Ulster v Cardiff Blues | L | 36-17 |
| United Rugby Championship | 2014/09/19 18:35 | Cardiff Blues v Ulster | L | 9-26 |
Home History
| United Rugby Championship | 2018/03/16 19:35 | Cardiff Blues v Benetton Treviso | W | 31-25 |
| Pro 14 Rugby | 2018/02/25 13:00 | Zebre v Cardiff Blues | W | 7-10 |
| Pro 14 Rugby | 2018/02/17 17:30 | Cardiff Blues v Munster | W | 25-18 |
| Pro 14 Rugby | 2018/02/10 19:35 | Cardiff Blues v Cheetahs | W | 25-20 |
| LV Cup | 2018/02/02 19:45 | Cardiff Blues v London Irish | L | 21-42 |
| LV Cup | 2018/01/27 15:00 | Leicester v Cardiff Blues | L | 24-12 |
| European Challenge Cup | 2018/01/20 17:00 | Lyon v Cardiff Blues | W | 18-21 |
| British & Irish Cup | 2018/01/19 19:45 | Bristol v Cardiff Blues | L | 68-0 |
Away History
| Pro 14 Rugby | 2018/02/24 19:35 | Scarlets v Ulster | L | 34-10 |
| Pro 14 Rugby | 2018/02/16 19:35 | Ulster v Edinburgh | L | 16-17 |
| Pro 14 Rugby | 2018/02/09 19:35 | Ulster v Southern Kings | W | 59-10 |
| European Rugby Champions Cup | 2018/01/21 15:15 | Wasps v Ulster | L | 26-7 |
| European Rugby Champions Cup | 2018/01/13 13:00 | Ulster v La Rochelle | W | 20-13 |
| Pro 14 Rugby | 2018/01/06 17:35 | Leinster v Ulster | L | 38-7 |
| Pro 14 Rugby | 2018/01/01 17:35 | Ulster v Munster | W | 24-17 |
| Pro 14 Rugby | 2017/12/23 19:35 | Connacht v Ulster | L | 44-16 |