Has an AFL game ever ended 53-50?
Yes. AFL has seen a final score of 53-50 4 times. It first happened on June 27, 1914, when Carlton beat St Kilda, and most recently on April 22, 1957, when Fitzroy beat Melbourne.
That makes 53-50 the 947th most common final score out of 6,607 that have ever occurred in AFL. One point away, 54-50 has happened 3 times and 53-51 has happened 5 times.