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Chelsea matches where John McCartney was opposition manager/coach
| Date | Venue | Opponent | Score | Comp |
| 25/10/1924 | Fratton Park | Portsmouth | 0-0 | Football League Division 2 |
| 28/02/1925 | Stamford Bridge | Portsmouth | 2-3 | Football League Division 2 |
| 19/12/1925 | Stamford Bridge | Portsmouth | 0-0 | Football League Division 2 |
| 01/05/1926 | Fratton Park | Portsmouth | 0-4 | Football League Division 2 |
| 16/10/1926 | Fratton Park | Portsmouth | 3-2 | Football League Division 2 |
| 04/05/1927 | Stamford Bridge | Portsmouth | 0-0 | Football League Division 2 |