Head to Head
| Pro 14 Rugby | 2021/02/26 20:00 | Ulster v Ospreys | L | 21-7 |
| Pro 14 Rugby | 2020/10/10 16:15 | Ospreys v Ulster | L | 12-24 |
| Pro 14 Rugby | 2020/02/15 17:15 | Ospreys v Ulster | W | 26-24 |
| Pro 14 Rugby | 2019/09/27 18:35 | Ulster v Ospreys | L | 38-14 |
| Pro 14 Rugby | 2019/02/15 19:35 | Ospreys v Ulster | L | 0-8 |
| Pro 14 Rugby | 2018/05/20 14:05 | Ulster v Ospreys | L | 35-17 |
| Pro 14 Rugby | 2018/04/13 18:35 | Ulster v Ospreys | L | 8-0 |
| Pro 14 Rugby | 2017/04/29 14:00 | Ospreys v Ulster | W | 24-10 |
Home History
| United Rugby Championship | 2021/11/26 19:35 | Connacht v Ospreys | L | 46-18 |
| United Rugby Championship | 2021/10/23 18:35 | Ospreys v Munster | W | 18-10 |
| United Rugby Championship | 2021/10/16 14:00 | Benetton Treviso v Ospreys | W | 26-29 |
| United Rugby Championship | 2021/10/08 18:35 | Ospreys v Sharks | L | 13-27 |
| United Rugby Championship | 2021/10/02 18:35 | Ospreys v Cardiff Blues | W | 18-14 |
| United Rugby Championship | 2021/09/26 13:00 | Newport Gwent Dragons v Ospreys | W | 23-27 |
| Pro 14 Rainbow Cup | 2021/06/04 17:00 | Connacht v Ospreys | L | 26-19 |
| Pro 14 Rainbow Cup | 2021/05/16 12:00 | Newport Gwent Dragons v Ospreys | W | 26-42 |
Away History
| United Rugby Championship | 2021/11/27 20:00 | Leinster v Ulster | W | 10-20 |
| United Rugby Championship | 2021/10/23 16:15 | Connacht v Ulster | L | 36-11 |
| United Rugby Championship | 2021/10/15 18:35 | Ulster v Lions | W | 26-10 |
| United Rugby Championship | 2021/10/08 18:35 | Ulster v Benetton Treviso | W | 28-8 |
| United Rugby Championship | 2021/10/02 16:15 | Zebre v Ulster | W | 3-36 |
| United Rugby Championship | 2021/09/24 18:35 | Ulster v Glasgow | W | 35-29 |
| Pro 14 Rainbow Cup | 2021/06/05 16:15 | Edinburgh v Ulster | W | 31-34 |
| Pro 14 Rainbow Cup | 2021/05/14 19:15 | Leinster v Ulster | L | 21-17 |