Has an AFL game ever ended 100-78?
It has. 100-78 has been a AFL final 4 times in 17,053 games. The first was North Melbourne beat Fitzroy on June 11, 1990; the latest was Sydney beat Carlton on May 30, 2021.
That makes 100-78 the 1005th most common final score out of 6,649 that have ever occurred in AFL. One point away, 101-78 has happened 4 times and 100-79 has happened 6 times.