Has an AFL game ever ended 85-29?
Exactly once. On August 9, 2019, Hawthorn beat GWS 85-29, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 85-29 in league history.
That makes 85-29 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 86-29 has happened never and 85-30 has happened never.