Has an AFL game ever ended 112-103?
It has. 112-103 has been a AFL final 3 times in 17,053 games. The first was Melbourne beat Richmond on July 18, 1936; the latest was Richmond beat North Melbourne on April 24, 2011.
That makes 112-103 the 1599th most common final score out of 6,649 that have ever occurred in AFL. One point away, 113-103 has happened 6 times and 112-104 has happened 3 times. At one point the score disappeared for 67 years, between 1936 and 2003.