[4] Ospreys 20-11 Cardiff Blues [5] 2019-01-05 15:00
Stadium: Liberty Stadium Round: 13
Referee: Ben Whitehouse
Head to Head
| United Rugby Championship | 2018/04/28 16:35 | Cardiff Blues v Ospreys | W | 23-26 |
| Pro 14 Rugby | 2018/01/06 15:15 | Ospreys v Cardiff Blues | W | 29-28 |
| LV Cup | 2017/11/17 19:15 | Cardiff Blues v Ospreys | W | 16-26 |
| Pro 14 Rugby | 2017/04/15 13:45 | Cardiff Blues v Ospreys | L | 35-17 |
| LV Cup | 2016/11/18 19:15 | Cardiff Blues v Ospreys | W | 7-31 |
| Pro 14 Rugby | 2016/10/07 18:35 | Ospreys v Cardiff Blues | W | 46-24 |
| United Rugby Championship | 2016/04/30 13:30 | Cardiff Blues v Ospreys | W | 27-40 |
| United Rugby Championship | 2015/11/28 15:00 | Ospreys v Cardiff Blues | W | 13-6 |
| United Rugby Championship | 2015/04/25 13:30 | Cardiff Blues v Ospreys | W | 23-31 |
| United Rugby Championship | 2014/10/12 15:00 | Ospreys v Cardiff Blues | W | 26-15 |