Head to Head
| Gibraltar Open 2019 | 2017/10/31 11:30 | Ryan Day v Mark Williams | 2-6 |
| Gibraltar Open 2019 | 2017/08/18 11:30 | Ryan Day v Mark Williams | 0-5 |
| 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 |
Home History
| Gibraltar Open 2019 | 2017/12/02 13:20 | Mark Williams v Andrew Higginson | 6-2 |
| Gibraltar Open 2019 | 2017/11/30 09:30 | Mark Williams v Paul S Davison | 6-0 |
| Gibraltar Open 2019 | 2017/11/26 13:00 | Yan Bingtao v Mark Williams | 8-9 |
| Gibraltar Open 2019 | 2017/11/25 13:00 | Elliot Slessor v Mark Williams | 2-6 |
| Gibraltar Open 2019 | 2017/11/24 17:40 | Mike Dunn v Mark Williams | 1-5 |
| Gibraltar Open 2019 | 2017/11/23 19:00 | Mark Williams v David Gilbert | 4-2 |
| Gibraltar Open 2019 | 2017/11/23 13:00 | Sunny Akani v Mark Williams | 1-4 |
| Gibraltar Open 2019 | 2017/11/22 12:45 | Tom Ford v Mark Williams | 0-4 |
Away History
| Gibraltar Open 2019 | 2017/12/02 13:00 | Ryan Day v Thepchaiya Un-Nooh | 6-3 |
| Gibraltar Open 2019 | 2017/11/28 14:30 | Ryan Day v Jamie Curtis-Barrett | 6-0 |
| Gibraltar Open 2019 | 2017/11/23 21:40 | Yan Bingtao v Ryan Day | 4-3 |
| Gibraltar Open 2019 | 2017/11/23 10:00 | Ryan Day v Robin Hull | 4-3 |
| Gibraltar Open 2019 | 2017/11/22 19:45 | Ryan Day v Li Hang | 4-2 |
| Gibraltar Open 2019 | 2017/11/21 20:50 | Ryan Day v John J Astley | 4-3 |
| Gibraltar Open 2019 | 2017/11/13 01:30 | Ryan Day v Yu Delu | 4-5 |
| Gibraltar Open 2019 | 2017/11/06 19:00 | Anthony Hamilton v Ryan Day | 6-4 |