Has an AFL game ever ended 91-53?
It has. 91-53 has been a AFL final 4 times in 16,622 games. The first was Richmond beat St Kilda on July 13, 1929; the latest was GWS beat Fremantle on August 29, 2020.
That makes 91-53 the 947th most common final score out of 6,607 that have ever occurred in AFL. One point away, 92-53 has happened 4 times and 91-54 has happened 5 times. At one point the score disappeared for 53 years, between 1948 and 2001.