Head to Head
| Championship League Snooker | 2017/01/11 13:55 | Mark Williams v Ryan Day | 3-1 |
| Gibraltar Open 2019 | 2017/01/09 19:55 | Ryan Day v Mark Williams | 2-3 |
| Gibraltar Open 2019 | 2017/01/05 10:50 | Mark Williams v Ryan Day | 1-3 |
| World Grand Prix | 2015/03/17 18:50 | Mark Williams v Ryan Day | 4-3 |
Home History
| Championship League Snooker | 2017/02/20 14:40 | Shaun Murphy v Mark Williams | 2-3 |
| Welsh Open | 2017/02/14 14:55 | Mark Williams v Elliot Slessor | 3-4 |
| World Grand Prix | 2017/02/07 16:00 | Mark Williams v Joe Perry | 2-4 |
| German Masters 2017 | 2017/02/02 14:00 | Anthony Hamilton v Mark Williams | 5-3 |
| China Championship Qualifiers 2019 | 2017/01/25 19:00 | Mark Williams v Zhao Xintong | 5-3 |
| The Masters | 2017/01/18 13:00 | Mark Selby v Mark Williams | 6-5 |
| Championship League Snooker | 2017/01/12 19:20 | Barry Hawkins v Mark Williams | 3-0 |
| Championship League Snooker | 2017/01/12 17:50 | Mark Williams v Shaun Murphy | 3-0 |
Away History
| Championship League Snooker | 2017/02/20 14:30 | Ryan Day v Stuart Bingham | 0-3 |
| Welsh Open | 2017/02/15 09:35 | Thepchaiya Un-Nooh v Ryan Day | 4-1 |
| Welsh Open | 2017/02/13 20:45 | David Gilbert v Ryan Day | 3-4 |
| World Grand Prix | 2017/02/12 13:00 | Barry Hawkins v Ryan Day | 10-7 |
| World Grand Prix | 2017/02/11 19:00 | Marco Fu v Ryan Day | 4-6 |
| World Grand Prix | 2017/02/10 13:00 | Ryan Day v Shaun Murphy | 4-2 |
| World Grand Prix | 2017/02/08 21:25 | Michael White v Ryan Day | 2-4 |
| World Grand Prix | 2017/02/07 13:00 | Ryan Day v Stuart Bingham | 4-2 |