fitzroy (2nd) v collingwood (4th) mcg
collingwood end fitzroys season and 10 game winning streak they will play carlton in a prelim final.
| Q1 | Q2 | Q3 | Q4 | Score | Date / Result | Ground | Crowd | ||
| Collingwood | 1.2 | 1.7 | 3.9 | 4.17 | 41 | Sat 11-Sep-1920 2:30 pm | M.C.G. | 39,845 | |
| Fitzroy | 1.2 | 1.4 | 2.5 | 3.5 | 23 | Collingwood won by 18 points | |||
richmond (1st) v carlton (3rd) mcg
carlton stun richmond by 23 points. carlton will play collingwood in a prelim final winner plays richmond for the flag.
| Q1 | Q2 | Q3 | Q4 | Score | Date / Result | Ground | Crowd | ||
| Carlton | 2.3 | 4.4 | 4.5 | 7.11 | 53 | Sat 18-Sep-1920 2:30 pm | M.C.G. | 62,220 | |
| Richmond | 1.2 | 1.2 | 4.6 | 4.6 | 30 | Carlton won by 23 points | |||
prelim final
carlton v collingwood MCG