Has an AFL game ever ended 100-84?
Yes. AFL has seen a final score of 100-84 3 times. It first happened on June 22, 1940, when Footscray beat Collingwood, and most recently on April 11, 2010, when Footscray beat Hawthorn.
That makes 100-84 the 1599th most common final score out of 6,649 that have ever occurred in AFL. One point away, 101-84 has happened 5 times and 100-85 has happened 3 times. At one point the score disappeared for 61 years, between 1940 and 2001.