Has an AFL game ever ended 177-91?
Exactly once. On May 13, 1978, Hawthorn beat Footscray 177-91, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 177-91 in league history.
That makes 177-91 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 178-91 has happened never and 177-92 has happened never.