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 |
Home History
| Championship League Snooker | 2022/01/03 11:00 | Mark Selby v Zhao Xintong | 0-3 |
| World Grand Prix 2021 | 2021/12/17 19:00 | Neil Robertson v Mark Selby | 6-3 |
| World Grand Prix 2021 | 2021/12/16 19:00 | Mark Selby v Tom Ford | 5-2 |
| World Grand Prix 2021 | 2021/12/15 21:20 | Mark Allen v Mark Selby | 2-4 |
| World Grand Prix 2021 | 2021/12/14 13:00 | Barry Hawkins v Mark Selby | 1-4 |
| Scottish Open 2021 | 2021/12/09 19:00 | Mark Selby v Anthony McGill | 3-4 |
| Scottish Open 2021 | 2021/12/08 21:10 | Mark Selby v Xiao Guodong | 4-2 |
| Scottish Open 2021 | 2021/12/07 13:00 | Mark Selby v Oliver Lines | 0-4 |
Away History
| Championship League Snooker | 2021/12/23 17:50 | Ryan Day v Graeme Dott | 2-3 |
| Championship League Snooker | 2021/12/23 14:20 | Xiao Guodong v Ryan Day | 1-3 |
| Championship League Snooker | 2021/12/23 12:50 | Joe Perry v Ryan Day | 0-3 |
| Championship League Snooker | 2021/12/23 11:00 | Lu Ning v Ryan Day | 3-2 |
| Championship League Snooker | 2021/12/22 19:50 | Graeme Dott v Ryan Day | 2-3 |
| Championship League Snooker | 2021/12/22 16:30 | Gary Wilson v Ryan Day | 0-3 |
| Championship League Snooker | 2021/12/22 12:40 | Ryan Day v Jack Lisowski | 2-3 |
| Championship League Snooker | 2021/12/21 17:45 | Liang Wenbo v Ryan Day | 3-2 |