Head to Head
| The Masters | 2018/01/18 13:05 | Ronnie O'Sullivan v Mark Allen | 1-6 |
| Gibraltar Open 2019 | 2016/12/15 21:15 | Mark Allen v Ronnie O'Sullivan | 2-4 |
| Champion of Champions | 2016/11/11 19:00 | Ronnie O'Sullivan v Mark Allen | 6-2 |
| Gibraltar Open 2019 | 2016/10/05 16:00 | Ronnie O'Sullivan v Mark Allen | 4-2 |
Home History
| UK Championship | 2018/12/08 13:15 | Ronnie O'Sullivan v Tom Ford | 6-1 |
| UK Championship | 2018/12/07 13:00 | Ronnie O'Sullivan v Martin O'Donnell | 6-1 |
| UK Championship | 2018/12/05 13:00 | Ronnie O'Sullivan v Jack Lisowski | 6-1 |
| UK Championship | 2018/12/03 13:00 | Ronnie O'Sullivan v Zhou Yuelong | 6-0 |
| UK Championship | 2018/12/02 13:00 | Ronnie O'Sullivan v Ken Doherty | 6-5 |
| UK Championship | 2018/11/29 14:30 | Ronnie O'Sullivan v Luke Simmonds | 6-1 |
| Northern Ireland Open | 2018/11/18 13:00 | Ronnie O'Sullivan v Judd Trump | 7-9 |
| Northern Ireland Open | 2018/11/17 13:00 | Ronnie O'Sullivan v Mark Selby | 6-5 |
Away History
| UK Championship | 2018/12/08 19:00 | Stuart Bingham v Mark Allen | 5-6 |
| UK Championship | 2018/12/07 19:00 | Mark Allen v Stephen Maguire | 6-1 |
| UK Championship | 2018/12/05 19:00 | Mark Allen v Neil Robertson | 6-5 |
| UK Championship | 2018/12/04 19:00 | Mark Allen v Hossein Vafaei | 6-2 |
| UK Championship | 2018/12/02 19:00 | Mark Allen v Rory McLeod | 6-2 |
| UK Championship | 2018/11/28 19:30 | Mark Allen v Basem Eltahhan | 6-2 |
| Northern Ireland Open | 2018/11/12 16:00 | Mark Allen v Niu Zhuang | 1-4 |
| Champion of Champions | 2018/11/10 19:00 | Mark Allen v Kyren Wilson | 5-6 |