Has an AFL game ever ended 84-73?
It has. 84-73 has been a AFL final 4 times in 16,622 games. The first was Melbourne beat Collingwood on June 16, 1958; the latest was Essendon beat Adelaide on July 15, 2011.
That makes 84-73 the 947th most common final score out of 6,607 that have ever occurred in AFL. One point away, 85-73 has happened 4 times and 84-74 has happened 7 times. At one point the score disappeared for 35 years, between 1960 and 1995.