Head to Head
| Gibraltar Open 2019 | 2018/04/05 11:30 | Mark Williams v Mark Allen | 6-5 |
| Championship League Snooker | 2017/01/11 17:55 | Mark Allen v Mark Williams | 1-3 |
| German Masters | 2015/02/05 14:00 | Mark Allen v Mark Williams | 5-2 |
| International Championship | 2014/11/01 06:00 | Mark Allen v Mark Williams | 9-8 |
| Shanghai Masters | 2014/09/11 06:30 | Mark Allen v Mark Williams | 5-1 |
| World Open | 2014/03/12 01:30 | Mark Allen v Mark Williams | 5-3 |
Home History
| Northern Ireland Open 2022 | 2022/10/20 18:00 | Mark Allen v Xiao Guodong | 4-0 |
| Northern Ireland Open 2022 | 2022/10/19 21:00 | Mark Allen v Andy Lee | 4-3 |
| Northern Ireland Open 2022 | 2022/10/17 18:00 | Mark Allen v Chen Zifan | 4-0 |
| Northern Ireland Open Qualifier 2022 | 2022/10/16 19:55 | Mark Allen v Chang Bingyu | 4-1 |
| British Open 2022 | 2022/10/02 12:00 | Mark Allen v Ryan Day | 7-10 |
| British Open 2022 | 2022/10/01 12:00 | Mark Allen v Noppon Saengkham | 6-1 |
| British Open 2022 | 2022/09/30 12:00 | Mark Selby v Mark Allen | 3-5 |
| British Open 2022 | 2022/09/29 19:55 | Mark Allen v Judd Trump | 4-3 |
Away History
| Northern Ireland Open 2022 | 2022/10/20 18:00 | Stephen Maguire v Mark Williams | 3-4 |
| Northern Ireland Open 2022 | 2022/10/19 15:25 | Jimmy Robertson v Mark Williams | 2-4 |
| Northern Ireland Open 2022 | 2022/10/17 19:20 | Alexander Ursenbacher v Mark Williams | 2-4 |
| Northern Ireland Open Qualifier 2022 | 2022/10/16 18:00 | Mark Williams v Peter Lines | 4-2 |
| Hong Kong Masters 2022 | 2022/10/07 05:30 | Neil Robertson v Mark Williams | 5-3 |
| British Open 2022 | 2022/09/27 19:35 | Ben Woollaston v Mark Williams | 4-1 |
| British Open Qualifiers 2022 | 2022/09/26 12:00 | Mark Williams v Andres Petrov | 4-1 |
| European Masters 2022 | 2022/08/20 18:00 | Barry Hawkins v Mark Williams | 6-2 |