Has an AFL game ever ended 66-55?
It has. 66-55 has been a AFL final 6 times in 16,622 games. The first was St Kilda beat Essendon on June 8, 1912; the latest was Adelaide beat Geelong on June 3, 2001.
That makes 66-55 the 342nd most common final score out of 6,607 that have ever occurred in AFL. One point away, 67-55 has happened 4 times and 66-56 has happened 1 times. At one point the score disappeared for 27 years, between 1961 and 1988.