[4] Cardiff Blues 11-14 Scarlets [1] 2017-12-31 15:15
Stadium: Cardiff Arms Park Round: 12
Referee: George Clancy
Head to Head
| Pro 14 Rugby | 2017/10/28 18:35 | Scarlets v Cardiff Blues | L | 30-17 |
| Pro 14 Rugby | 2017/01/01 15:00 | Scarlets v Cardiff Blues | L | 15-10 |
| Pro 14 Rugby | 2016/10/28 18:35 | Cardiff Blues v Scarlets | L | 15-26 |
| United Rugby Championship | 2016/04/02 14:00 | Scarlets v Cardiff Blues | W | 22-28 |
| United Rugby Championship | 2016/01/01 17:00 | Cardiff Blues v Scarlets | W | 29-27 |
| United Rugby Championship | 2015/05/10 15:00 | Scarlets v Cardiff Blues | L | 16-6 |
| United Rugby Championship | 2014/12/19 19:35 | Cardiff Blues v Scarlets | W | 21-9 |
| LV Cup | 2014/11/14 19:30 | Cardiff Blues v Scarlets | W | 19-13 |