Has an AFL game ever ended 50-33?
Yes. AFL has seen a final score of 50-33 3 times. It first happened on July 23, 1898, when Fitzroy beat Melbourne, and most recently on June 19, 1909, when Carlton beat Essendon.
That makes 50-33 the 1599th most common final score out of 6,649 that have ever occurred in AFL. One point away, 51-33 has happened 3 times and 50-34 has happened 2 times. Nearly all of its occurrences fall between 1890 and 1919.