Has an AFL game ever ended 102-56?
It has. 102-56 has been a AFL final 4 times in 16,622 games. The first was Fitzroy beat North Melbourne on June 30, 1928; the latest was Richmond beat Melbourne on April 24, 2018.
That makes 102-56 the 947th most common final score out of 6,607 that have ever occurred in AFL. One point away, 103-56 has happened 6 times and 102-57 has happened 2 times. Nearly all of its occurrences fall between 2010 and 2039. At one point the score disappeared for 83 years, between 1928 and 2011.