Head to Head
| Riga Masters 2017 | 2017/06/25 12:55 | Ryan Day v Mark Williams | 5-4 |
| 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
| Gibraltar Open 2019 | 2017/08/17 11:30 | Cao Yupeng v Ryan Day | 3-5 |
| World Open | 2017/08/07 13:50 | Ryan Day v Rod Lawler | 5-3 |
| European Masters Qualifiers | 2017/08/04 12:00 | Ryan Day v Lukas Kleckers | 4-3 |
| Gibraltar Open 2019 | 2017/07/08 12:36 | Ryan Day v Liang Wenbo | View |
| Gibraltar Open 2019 | 2017/07/08 12:03 | Ryan Day v Ding Junhui | View |
| Gibraltar Open 2019 | 2017/07/07 08:22 | Ryan Day v Itaro Santos | View |
| Gibraltar Open 2019 | 2017/07/07 07:36 | Ryan Day v Igor Figueiredo | View |
| Gibraltar Open 2019 | 2017/07/05 05:59 | Robin Hull v Ryan Day | 0-1 |
Away History
| Gibraltar Open 2019 | 2017/08/17 11:30 | Tian Pengfei v Mark Williams | 2-5 |
| World Open | 2017/08/06 13:30 | Mark Williams v Christopher Keogan | 5-0 |
| Gibraltar Open 2019 | 2017/07/08 12:55 | Mark Williams v Ding Junhui | View |
| Gibraltar Open 2019 | 2017/07/08 11:33 | Mark Williams v Liang Wenbo | View |
| Gibraltar Open 2019 | 2017/07/07 07:21 | Mark Williams v Itaro Santos | View |
| Gibraltar Open 2019 | 2017/07/06 14:19 | Mark Williams v Yan Bingtao | 1-0 |
| Gibraltar Open 2019 | 2017/07/06 13:44 | Zhou Yuelong v Mark Williams | 0-1 |
| Gibraltar Open 2019 | 2017/07/05 06:10 | Heikki Niva v Mark Williams | 0-1 |