Head to Head
| Players Championship 2024 | 2024/02/20 13:00 | Mark Williams v Mark Allen | 3-6 |
| Northern Ireland Open 2022 | 2022/10/21 18:25 | Mark Allen v Mark Williams | 5-4 |
| 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
| Tour Championship 2024 | 2024/04/04 12:00 | Judd Trump v Mark Williams | 4-10 |
| Tour Championship 2024 | 2024/04/02 18:00 | Mark Williams v Tom Ford | 10-9 |
| World Masters 2024 | 2024/03/04 21:25 | Mark Williams v John Higgins | 2-4 |
| Players Championship 2024 | 2024/02/20 13:00 | Mark Williams v Mark Allen | 3-6 |
| Welsh Open 2024 | 2024/02/14 19:00 | Anthony McGill v Mark Williams | 4-1 |
| Welsh Open 2024 | 2024/02/13 12:30 | Sanderson Lam v Mark Williams | 3-4 |
| Welsh Open Qualifiers 2024 | 2024/02/12 14:25 | Mark Williams v John J Astley | 4-2 |
| German Masters 2024 | 2024/01/30 14:00 | He Guoqiang v Mark Williams | 5-1 |
Away History
| Tour Championship 2024 | 2024/04/03 18:00 | Ding Junhui v Mark Allen | 8-10 |
| Tour Championship 2024 | 2024/04/01 12:00 | Mark Allen v John Higgins | 10-7 |
| World Open 2024 | 2024/03/18 11:30 | Daniel Wells v Mark Allen | 5-3 |
| World Masters 2024 | 2024/03/06 14:10 | Luca Brecel v Mark Allen | 4-2 |
| World Masters 2024 | 2024/03/05 14:30 | Mark Allen v Mark Selby | 4-3 |
| Players Championship 2024 | 2024/02/25 19:00 | Mark Allen v Zhang Anda | 10-8 |
| Players Championship 2024 | 2024/02/23 19:00 | Ali Carter v Mark Allen | 3-6 |
| Players Championship 2024 | 2024/02/22 13:00 | Mark Allen v Gary Wilson | 6-4 |