Has an AFL game ever ended 103-70?
Yes. AFL has seen a final score of 103-70 5 times. It first happened on June 28, 1941, when Richmond beat Sydney, and most recently on June 30, 2019, when Richmond beat St Kilda.
That makes 103-70 the 589th most common final score out of 6,607 that have ever occurred in AFL. One point away, 104-70 has happened 5 times and 103-71 has happened 7 times. At one point the score disappeared for 66 years, between 1941 and 2007.