Has an AFL game ever ended 157-126?
Exactly once. On May 6, 1978, Hawthorn beat Carlton 157-126, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 157-126 in league history.
That makes 157-126 the 3883rd most common final score out of 6,649 that have ever occurred in AFL. One point away, 158-126 has happened never and 157-127 has happened never.