Has an AFL game ever ended 57-31?
It has. 57-31 has been a AFL final 4 times in 16,622 games. The first was Fitzroy beat Geelong on May 26, 1906; the latest was Richmond beat Geelong on September 11, 2020.
That makes 57-31 the 947th most common final score out of 6,607 that have ever occurred in AFL. One point away, 58-31 has happened 1 times and 57-32 has happened 2 times. Nearly all of its occurrences fall between 1890 and 1919. At one point the score disappeared for 101 years, between 1919 and 2020.