Head to Head
| English Open 2021 | 2021/11/03 19:00 | Mark Davis v Fergal O'Brien | 4-1 |
| WST Pro Series 2021 | 2021/03/19 17:00 | Fergal O'Brien v Mark Davis | 2-0 |
| China Championship Qualifiers 2019 | 2019/04/15 13:30 | Fergal O'Brien v Mark Davis | 4-10 |
| Gibraltar Open 2019 | 2017/02/16 11:40 | Mark Davis v Fergal O'Brien | 4-2 |
| Championship League Snooker | 2016/02/25 14:10 | Fergal O'Brien v Mark Davis | 1-3 |