carlton (2nd) v geelong (4th) mcg
carlton end geelongs season by 28 points they will play essendon in a prelim final.
| Geelong | 2.4 | 3.13 | 3.15 | 4.19 | 43 | Sat 7-Sep-1912 2:30 pm | M.C.G. | 40,166 | £1,540 |
| Carlton | 3.3 | 3.7 | 5.8 | 10.11 | 71 | Carlton won by 28 points | |||
south (1st) v essendon (3rd) mcg
essendon stun south by 2 goals. essendon will play carlton in a prelim final for th eright to play south in the grand final.
| Essendon | 2.3 | 4.5 | 7.7 | 7.12 | 54 | Sat 14-Sep-1912 2:30 pm | M.C.G. | 34,290 | £1,261 |
| South Melbourne | 1.1 | 3.1 | 6.2 | 6.6 | 42 | Essendon won by 12 points | |||
prelim final
carlton v essendon MCG