melbourne (3rd) v geelong (4th)
cats knock dees out by 44 they will play north in prelim final.
| Q1 | Q2 | Q3 | Q4 | Score | Date / Result | Ground | Crowd | ||
| Geelong | 1.1 | 4.5 | 8.6 | 13.10 | 88 | Sat 2-Sep-1950 2:30 pm | M.C.G. | 54,817 | |
| Melbourne | 2.2 | 3.2 | 5.4 | 6.8 | 44 | Geelong won by 44 points | |||
essendon (1st) v north (2nd)
dons edge roos by 3. north will play geelong for the right to play essendon in the grand.
| Q1 | Q2 | Q3 | Q4 | Score | Date / Result | Ground | Crowd | ||
| Essendon | 5.5 | 6.8 | 9.11 | 11.14 | 80 | Sat 9-Sep-1950 2:30 pm | M.C.G. | 75,433 | |
| North Melbourne | 0.3 | 5.7 | 8.9 | 11.11 | 77 | Essendon won by 3 points | |||
prelim final
north v geelong