Has an AFL game ever ended 99-36?
Exactly once. On May 14, 1910, Fitzroy beat St Kilda 99-36, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 99-36 in league history.
That makes 99-36 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 100-36 has happened never and 99-37 has happened never.