Has an AFL game ever ended 111-90?
It has. 111-90 has been a AFL final 7 times in 16,622 games. The first was Richmond beat Essendon on July 15, 1972; the latest was Port Adelaide beat GWS on August 15, 2015.
That makes 111-90 the 191st most common final score out of 6,607 that have ever occurred in AFL. One point away, 112-90 has happened 2 times and 111-91 has happened 4 times.