Has an AFL game ever ended 123-122?
Exactly once. On July 8, 1939, Footscray beat Essendon 123-122, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 123-122 in league history.
That makes 123-122 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 124-122 has happened 1 times and 123-123 has happened 1 times.