Head to Head
| United Rugby Championship | 2022/01/29 19:35 | Cardiff Blues v Leinster | L | 29-27 |
| Pro 14 Rugby | 2020/11/22 17:15 | Leinster v Cardiff Blues | W | 40-5 |
| Pro 14 Rugby | 2018/08/31 18:35 | Cardiff Blues v Leinster | W | 32-33 |
| Pro 14 Rugby | 2017/09/08 18:35 | Leinster v Cardiff Blues | W | 37-9 |
| Pro 14 Rugby | 2017/03/25 15:00 | Leinster v Cardiff Blues | W | 22-21 |
| Pro 14 Rugby | 2016/10/01 18:35 | Cardiff Blues v Leinster | W | 13-16 |
| United Rugby Championship | 2016/02/20 15:00 | Cardiff Blues v Leinster | W | 13-14 |
| United Rugby Championship | 2015/09/12 16:15 | Leinster v Cardiff Blues | W | 23-15 |
| United Rugby Championship | 2015/01/10 14:40 | Cardiff Blues v Leinster | W | 13-22 |
| United Rugby Championship | 2014/09/26 18:35 | Leinster v Cardiff Blues | W | 37-23 |