Has an AFL game ever ended 112-109?
It has. 112-109 has been a AFL final 3 times in 17,053 games. The first was Melbourne beat Geelong on July 22, 1989; the latest was Hawthorn beat Adelaide on April 22, 2016.
That makes 112-109 the 1599th most common final score out of 6,649 that have ever occurred in AFL. One point away, 113-109 has happened 2 times and 112-110 has happened 3 times.