| Derek Johnstone summary
| P
| W
| D
| L
| F
| -
| A
| Pts
| GD
|
| CS
|
| ppg
| win %
| cs %
| fpg
| apg
|
|
| | Friendly | 3 | 1 | 0 | 2 | 4 | · | 5 | 3 | -1 | | 1 | | 1 | 33.333 | 33.333 | 1.333 | 1.667 | |
| | League - 2nd tier | 33 | 8 | 11 | 14 | 38 | · | 43 | 35 | -5 | | 9 | | 1.061 | 24.242 | 27.273 | 1.152 | 1.303 | |
| | League Cup | 1 | 0 | 0 | 1 | 0 | · | 1 | 0 | -1 | | 0 | | 0 | 0 | 0 | 0 | 1 | |
| | Scottish Cup | 1 | 0 | 0 | 1 | 1 | · | 3 | 0 | -2 | | 0 | | 0 | 0 | 0 | 1 | 3 | |
| | League Totals | 33 | 8 | 11 | 14 | 38 | · | 43 | 35 | -5 | | 9 | | 1.061 | 24.242 | 27.273 | 1.152 | 1.303 | |
| | Competitive Totals | 35 | 8 | 11 | 16 | 39 | · | 47 | 35 | -8 | | 9 | | 1 | 22.857 | 25.714 | 1.114 | 1.343 | |
| | All Games Totals | 38 | 9 | 11 | 18 | 43 | · | 52 | 38 | -9 | | 10 | | 1 | 23.684 | 26.316 | 1.132 | 1.368 | |