Head to Head
| United Rugby Championship | 2023/10/29 14:30 | Newport Gwent Dragons v Cardiff Blues | W | 9-16 |
| United Rugby Championship | 2022/12/26 14:15 | Newport Gwent Dragons v Cardiff Blues | W | 24-29 |
| United Rugby Championship | 2022/10/15 16:15 | Cardiff Blues v Newport Gwent Dragons | W | 31-14 |
| United Rugby Championship | 2022/05/13 18:35 | Newport Gwent Dragons v Cardiff Blues | W | 18-19 |
| United Rugby Championship | 2021/10/23 16:15 | Cardiff Blues v Newport Gwent Dragons | W | 31-29 |
| Pro 14 - Rainbow Cup | 2021/05/09 12:00 | Cardiff Blues v Newport Gwent Dragons | W | 17-16 |
| Pro 14 Rugby | 2020/12/26 15:00 | Newport Gwent Dragons v Cardiff Blues | W | 12-13 |
| Pro 14 Rugby | 2019/12/26 15:00 | Cardiff Blues v Newport Gwent Dragons | W | 16-12 |
| Pro 14 Rugby | 2018/12/21 19:35 | Cardiff Blues v Newport Gwent Dragons | W | 19-16 |
| Pro 14 Rugby | 2018/10/06 16:15 | Newport Gwent Dragons v Cardiff Blues | W | 15-23 |
| Pro 14 Rugby | 2017/12/26 14:00 | Newport Gwent Dragons v Cardiff Blues | W | 17-22 |
| Pro 14 Rugby | 2017/10/06 18:35 | Cardiff Blues v Newport Gwent Dragons | W | 43-29 |
| United Rugby Championship | 2017/05/06 16:15 | Newport Gwent Dragons v Cardiff Blues | W | 24-26 |
| Pro 14 Rugby | 2016/12/26 14:05 | Cardiff Blues v Newport Gwent Dragons | W | 27-16 |
| United Rugby Championship | 2016/04/17 13:30 | Cardiff Blues v Newport Gwent Dragons | W | 28-8 |
| United Rugby Championship | 2015/12/27 15:05 | Newport Gwent Dragons v Cardiff Blues | W | 20-21 |
| European Rugby Challenge Cup | 2015/04/04 11:45 | Newport Gwent Dragons v Cardiff Blues | L | 25-21 |
| United Rugby Championship | 2015/01/01 14:05 | Newport Gwent Dragons v Cardiff Blues | W | 9-11 |
| United Rugby Championship | 2014/12/26 14:05 | Cardiff Blues v Newport Gwent Dragons | L | 17-23 |