Has an AFL game ever ended 124-103?
Exactly once. On April 19, 2013, Geelong beat Sydney 124-103, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 124-103 in league history.
That makes 124-103 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 125-103 has happened 1 times and 124-104 has happened 3 times.