essendon (3rd) v footscray (4th)
dons end dogs season by 8 leaving the later without a finals win yet essendon will play collingwood in the prelim final.
| Q1 | Q2 | Q3 | Q4 | Score | Date / Result | Ground | Crowd | ||
| Essendon | 3.2 | 4.4 | 6.7 | 8.13 | 61 | Sat 8-Sep-1951 2:30 pm | M.C.G. | 66,135 | |
| Footscray | 6.1 | 7.1 | 7.5 | 8.5 | 53 | Essendon won by 8 points | |||
geelong (1st) v collingwood (2nd)
cats destroy pies by 82 to make the grand either against collingwood or essendon.
| Q1 | Q2 | Q3 | Q4 | Score | Date / Result | Ground | Crowd | ||
| Geelong | 2.3 | 10.6 | 13.14 | 22.20 | 152 | Sat 15-Sep-1951 2:30 pm | M.C.G. | 73,785 | |
| Collingwood | 6.3 | 7.5 | 9.7 | 10.10 | 70 | Geelong won by 82 points | |||
prelim final
collingwood v essendon