[8] Cardiff Blues 35-17 Ospreys [3] 2017-04-15 13:45
Stadium: Millennium Round: 20
Referee: Andrew Brace
Head to Head
| LV Cup | 2016/11/18 19:15 | Cardiff Blues v Ospreys | L | 7-31 |
| Pro 14 Rugby | 2016/10/07 18:35 | Ospreys v Cardiff Blues | L | 46-24 |
| United Rugby Championship | 2016/04/30 13:30 | Cardiff Blues v Ospreys | L | 27-40 |
| United Rugby Championship | 2015/11/28 15:00 | Ospreys v Cardiff Blues | L | 13-6 |
| United Rugby Championship | 2015/04/25 13:30 | Cardiff Blues v Ospreys | L | 23-31 |
| United Rugby Championship | 2014/10/12 15:00 | Ospreys v Cardiff Blues | L | 26-15 |
Home History
| United Rugby Championship | 2017/04/07 18:35 | Ulster v Cardiff Blues | D | 24-24 |
| European Rugby Challenge Cup | 2017/04/01 19:05 | Gloucester v Cardiff Blues | L | 46-26 |
| Pro 14 Rugby | 2017/03/25 15:00 | Leinster v Cardiff Blues | L | 22-21 |
| British & Irish Cup | 2017/03/10 19:00 | London Scottish v Cardiff Blues | W | 21-24 |
| Pro 14 Rugby | 2017/03/04 17:15 | Cardiff Blues v Munster | L | 13-23 |
| Pro 14 Rugby | 2017/02/24 19:05 | Edinburgh v Cardiff Blues | W | 17-18 |
| United Rugby Championship | 2017/02/18 14:30 | Cardiff Blues v Benetton Treviso | W | 57-20 |
| United Rugby Championship | 2017/02/12 13:05 | Cardiff Blues v Connacht | L | 13-19 |
Away History
| Pro 14 Rugby | 2017/04/08 14:00 | Ospreys v Leinster | L | 18-20 |
| European Rugby Challenge Cup | 2017/04/02 16:45 | Ospreys v Stade Francais | L | 21-25 |
| Pro 14 Rugby | 2017/03/25 19:35 | Benetton Treviso v Ospreys | L | 13-5 |
| Pro 14 Rugby | 2017/03/03 19:35 | Edinburgh v Ospreys | W | 9-13 |
| Pro 14 Rugby | 2017/02/26 13:05 | Ospreys v Glasgow | W | 26-15 |
| Pro 14 Rugby | 2017/02/18 17:15 | Ospreys v Munster | L | 23-25 |
| United Rugby Championship | 2017/02/10 19:00 | Zebre v Ospreys | W | 10-40 |
| LV Cup | 2017/02/05 15:00 | Wasps v Ospreys | W | 22-31 |