[11] St Mirren 0-0 St Johnstone [8] 2021-06-15 04:00
Stadium: St. Mirren Park Round: 4
Referee: David Dickinson Home Manager: James Michael Goodwin Away Manager: Callum Davidson
Head to Head
| Scotland FA Cup | 2021/05/09 13:15 | St Mirren v St Johnstone | L | 1-2 |
| Scotland Premiership | 2021/01/16 15:00 | St Johnstone v St Mirren | L | 1-0 |
| Scotland Premiership | 2020/12/19 15:00 | St Mirren v St Johnstone | W | 3-2 |
| Scotland Premiership | 2020/08/29 14:00 | St Johnstone v St Mirren | L | 1-0 |
| Scotland Premiership | 2020/03/04 19:45 | St Mirren v St Johnstone | D | 0-0 |
| Scotland Premiership | 2019/12/21 15:00 | St Johnstone v St Mirren | D | 0-0 |
| Scotland Premiership | 2019/10/19 14:00 | St Mirren v St Johnstone | W | 2-0 |
| Scotland Premiership | 2019/04/27 14:00 | St Mirren v St Johnstone | D | 1-1 |
Home History
| Scotland Premiership | 2021/05/16 11:00 | St Mirren v Dundee Utd | D | 0-0 |
| Scotland Premiership | 2021/05/12 18:45 | Kilmarnock v St Mirren | D | 3-3 |
| Scotland FA Cup | 2021/05/09 13:15 | St Mirren v St Johnstone | L | 1-2 |
| Scotland Premiership | 2021/05/01 14:00 | St Mirren v Hamilton | L | 1-2 |
| Scotland FA Cup | 2021/04/26 18:45 | Kilmarnock v St Mirren | W | 7-8 |
| Scotland Premiership | 2021/04/21 18:45 | Ross County v St Mirren | W | 1-3 |
| Scotland FA Cup | 2021/04/16 17:00 | St Mirren v Inverness CT | W | 2-1 |
| Scotland Premiership | 2021/04/10 14:00 | Motherwell v St Mirren | L | 1-0 |
Away History
| Scotland FA Cup | 2021/05/22 13:00 | St Johnstone v Hibernian | W | 1-0 |
| Scotland Premiership | 2021/05/15 11:30 | St Johnstone v Livingston | D | 0-0 |
| Scotland Premiership | 2021/05/12 17:30 | Celtic v St Johnstone | L | 4-0 |
| Scotland FA Cup | 2021/05/09 13:15 | St Mirren v St Johnstone | W | 1-2 |
| Scotland Premiership | 2021/05/01 14:00 | Hibernian v St Johnstone | W | 0-1 |
| Scotland FA Cup | 2021/04/25 17:30 | Rangers v St Johnstone | W | 3-5 |
| Scotland Premiership | 2021/04/21 18:00 | St Johnstone v Rangers | D | 1-1 |
| Scotland FA Cup | 2021/04/17 16:30 | St Johnstone v Clyde | W | 2-0 |