Head to Head
| Championship League Snooker | 2021/02/10 13:35 | Mark Selby v Mark Williams | 2-3 |
| Championship League Snooker | 2021/02/09 18:45 | Mark Selby v Mark Williams | 3-2 |
| Championship League Snooker | 2021/02/08 18:55 | Mark Selby v Mark Williams | 3-2 |
| Players Championship 2020 | 2020/02/24 19:00 | Mark Selby v Mark Williams | 6-0 |
| China Championship - Kval 2019 | 2018/04/06 06:00 | Mark Selby v Mark Williams | 6-2 |
| Championship League Snooker | 2018/03/29 13:00 | Mark Selby v Mark Williams | 3-0 |
| Gibraltar Open 2019 | 2018/01/14 13:10 | Mark Selby v Mark Williams | 5-6 |
| Gibraltar Open 2019 | 2017/11/16 04:00 | Mark Williams v Mark Selby | 5-3 |
Home History
| Welsh Open 2021 | 2021/02/19 12:00 | Mark Selby v Jordan Brown | 4-5 |
| Welsh Open 2021 | 2021/02/18 19:00 | Mark Selby v Yan Bingtao | 4-2 |
| Welsh Open 2021 | 2021/02/18 10:00 | Mark Selby v Joe O'Connor | 4-3 |
| Welsh Open 2021 | 2021/02/17 14:40 | Mark Selby v Jamie O'Neill | 4-1 |
| Welsh Open 2021 | 2021/02/15 19:00 | Mark Selby v Barry Pinches | 4-1 |
| Championship League Snooker | 2021/02/11 18:10 | Mark Selby v Joe Perry | 3-1 |
| Championship League Snooker | 2021/02/11 14:30 | Mark Selby v Ali Carter | 0-3 |
| Championship League Snooker | 2021/02/11 12:30 | Mark Selby v Barry Hawkins | 2-3 |
Away History
| Welsh Open 2021 | 2021/02/20 19:10 | Mark Williams v Ronnie O'Sullivan | 1-6 |
| Welsh Open 2021 | 2021/02/19 19:00 | Mark Williams v Tom Ford | 5-4 |
| Welsh Open 2021 | 2021/02/18 19:00 | Hossein Vafaei v Mark Williams | 2-4 |
| Welsh Open 2021 | 2021/02/18 10:00 | Mark Williams v Joe Perry | 4-2 |
| Welsh Open 2021 | 2021/02/17 14:40 | Mark Williams v Liam Highfield | 4-1 |
| Welsh Open 2021 | 2021/02/16 13:00 | Mark Williams v Michael White | 4-1 |
| Championship League Snooker | 2021/02/13 19:30 | Ali Carter v Mark Williams | 3-2 |
| Championship League Snooker | 2021/02/13 18:00 | Mark Williams v David Gilbert | 3-1 |