Has an AFL game ever ended 78-55?
Yes. AFL has seen a final score of 78-55 3 times. It first happened on August 29, 1925, when Fitzroy beat St Kilda, and most recently on July 20, 2020, when St Kilda beat Adelaide.
That makes 78-55 the 1534th most common final score out of 6,607 that have ever occurred in AFL. One point away, 79-55 has happened 2 times and 78-56 has happened 7 times. At one point the score disappeared for 90 years, between 1925 and 2015.