Has an AFL game ever ended 131-122?
Exactly once. On August 23, 1987, Geelong beat Sydney 131-122, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 131-122 in league history.
That makes 131-122 the 3884th most common final score out of 6,649 that have ever occurred in AFL. One point away, 132-122 has happened 1 times and 131-123 has happened never.