Head to Head
| Championship League Snooker | 2017/02/22 15:20 | Mark Williams v Ryan Day | 3-2 |
| Championship League Snooker | 2017/02/20 17:50 | Mark Williams v Ryan Day | 2-3 |
| 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
| Riga Masters 2017 | 2017/06/25 11:15 | Joe Perry v Ryan Day | 0-4 |
| Riga Masters 2017 | 2017/06/24 15:15 | Ryan Day v Kyren Wilson | 4-3 |
| Riga Masters 2017 | 2017/06/24 11:00 | Robert Milkins v Ryan Day | 1-4 |
| Riga Masters 2017 | 2017/06/23 13:15 | Barry Hawkins v Ryan Day | 3-4 |
| China Championship Qualifiers 2019 | 2017/06/06 13:30 | Ryan Day v Jimmy White | 5-0 |
| Riga Masters 2017 | 2017/06/01 18:00 | David John v Ryan Day | 1-4 |
| Gibraltar Open 2019 | 2017/04/19 09:00 | Ryan Day v Xiao Guodong | 4-10 |
| Players Championship | 2017/03/07 13:00 | Mark Selby v Ryan Day | 5-4 |
Away History
| Riga Masters 2017 | 2017/06/25 11:05 | Mark Joyce v Mark Williams | 1-4 |
| Riga Masters 2017 | 2017/06/24 16:20 | Robbie Williams v Mark Williams | 2-4 |
| Riga Masters 2017 | 2017/06/24 13:00 | Mark Williams v Luca Brecel | 4-1 |
| Riga Masters 2017 | 2017/06/23 16:05 | Mark Williams v Peter Ebdon | 4-1 |
| China Championship Qualifiers 2019 | 2017/06/03 13:30 | Mark Williams v Jak Jones | 5-3 |
| World Championship | 2017/04/11 16:00 | Mark Williams v Stuart Carrington | 7-10 |
| World Championship | 2017/04/10 09:00 | Mark Williams v Liam Highfield | 10-9 |
| World Championship | 2017/04/08 09:00 | Mark Williams v Zhao Xintong | 10-7 |