Head to Head
| WST Pro Series 2021 | 2021/03/20 20:00 | Mark Selby v Ryan Day | 2-0 |
| Snooker Shoot-Out 2021 | 2021/02/07 22:45 | Mark Selby v Ryan Day | 0-1 |
| Championship League Snooker | 2019/10/09 11:00 | Mark Selby v Ryan Day | 3-0 |
| Championship League Snooker | 2019/10/08 13:45 | Mark Selby v Ryan Day | 3-2 |
| Championship League Snooker 2019 | 2019/01/10 14:00 | Ryan Day v Mark Selby | 1-3 |
| European Masters | 2018/10/04 14:25 | Mark Selby v Ryan Day | 2-4 |
| Players Championship | 2018/03/20 13:00 | Mark Selby v Ryan Day | 3-6 |
| Championship League Snooker | 2018/01/05 17:55 | Ryan Day v Mark Selby | 0-3 |
| Championship League Snooker | 2018/01/05 14:20 | Mark Selby v Ryan Day | 2-3 |
| Players Championship | 2017/03/07 13:00 | Mark Selby v Ryan Day | 5-4 |
| Championship League Snooker | 2017/02/22 12:15 | Ryan Day v Mark Selby | 0-3 |
| Gibraltar Open 2019 | 2016/09/23 06:30 | Ryan Day v Mark Selby | 3-5 |