Head to Head
| UK Championship | 2018/12/09 13:00 | Ronnie O'Sullivan v Mark Allen | 10-6 |
| 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
| Players Championship | 2019/03/07 19:00 | Mark Allen v Stuart Bingham | 6-4 |
| Players Championship | 2019/03/04 19:00 | Mark Allen v Stephen Maguire | 6-2 |
| Welsh Open 2019 | 2019/02/14 13:00 | Ian Burns v Mark Allen | 4-2 |
| Welsh Open 2019 | 2019/02/13 15:40 | Mei Xiwen v Mark Allen | 1-4 |
| Welsh Open 2019 | 2019/02/11 20:30 | Mark Allen v Mark Joyce | 4-2 |
| World Grand Prix | 2019/02/07 13:00 | Mark Allen v Ali Carter | 1-4 |
| World Grand Prix | 2019/02/04 20:50 | Mark Allen v Gary Wilson | 4-2 |
| The Masters 2019 | 2019/01/13 13:00 | Mark Allen v Luca Brecel | 5-6 |
Away History
| Players Championship | 2019/03/08 13:00 | Ronnie O'Sullivan v John Higgins | 6-4 |
| Players Championship | 2019/03/04 19:00 | Ronnie O'Sullivan v Barry Hawkins | 6-4 |
| Welsh Open 2019 | 2019/02/14 13:00 | Alexander Ursenbacher v Ronnie O'Sullivan | 4-2 |
| Welsh Open 2019 | 2019/02/13 15:40 | Yuan Sijun v Ronnie O'Sullivan | 2-4 |
| Welsh Open 2019 | 2019/02/12 13:00 | Ronnie O'Sullivan v Sanderson Lam | 4-2 |
| World Grand Prix | 2019/02/04 19:00 | Ronnie O'Sullivan v Marco Fu | 2-4 |
| The Masters 2019 | 2019/01/20 13:00 | Ronnie O'Sullivan v Judd Trump | 4-10 |
| The Masters 2019 | 2019/01/19 13:20 | Ding Junhui v Ronnie O'Sullivan | 3-6 |