Has an AFL game ever ended 53-30?
Yes. AFL has seen a final score of 53-30 3 times. It first happened on August 27, 1904, when Fitzroy beat Geelong, and most recently on August 13, 1960, when Fitzroy beat Footscray.
That makes 53-30 the 1534th most common final score out of 6,607 that have ever occurred in AFL. One point away, 54-30 has happened 3 times and 53-31 has happened 3 times. At one point the score disappeared for 40 years, between 1920 and 1960.