Head to Head
| Championship League Snooker | 2022/01/03 12:05 | Mark Selby v Ryan Day | 2-3 |
| 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 |
Home History
| WST Classic 2023 | 2023/03/22 19:00 | Pang Junxu v Mark Selby | 2-6 |
| WST Classic 2023 | 2023/03/22 14:30 | Ali Carter v Mark Selby | 0-5 |
| WST Classic 2023 | 2023/03/22 10:00 | John Higgins v Mark Selby | 2-4 |
| WST Classic 2023 | 2023/03/21 19:40 | Robbie Williams v Mark Selby | 3-4 |
| WST Classic 2023 | 2023/03/21 15:35 | Daniel Wells v Mark Selby | 1-4 |
| WST Classic 2023 | 2023/03/20 18:05 | Zhang Anda v Mark Selby | 3-4 |
| WST Classic 2023 | 2023/03/18 18:00 | Mark Selby v Robbie Mcguigan | 4-1 |
| Players Championship 2023 | 2023/02/21 13:00 | Mark Selby v Shaun Murphy | 3-6 |
Away History
| WST Classic 2023 | 2023/03/17 10:00 | Ryan Day v Steven Hallworth | 1-4 |
| Players Championship 2023 | 2023/02/23 19:00 | Shaun Murphy v Ryan Day | 6-0 |
| Players Championship 2023 | 2023/02/20 19:00 | Ryan Day v Chris Wakelin | 6-2 |
| Welsh Open Qualifiers 2023 | 2023/02/13 19:00 | Ryan Day v Stuart Carrington | 3-4 |
| Snooker Shoot-Out 2023 | 2023/01/26 16:40 | Jimmy Robertson v Ryan Day | 1-0 |
| World Grand Prix 2023 | 2023/01/19 13:00 | Xiao Guodong v Ryan Day | 4-1 |
| World Grand Prix 2023 | 2023/01/17 13:00 | Ryan Day v Ricky Walden | 4-1 |
| The Masters 2023 | 2023/01/11 13:05 | Judd Trump v Ryan Day | 6-5 |