Has an AFL game ever ended 88-63?
Exactly once. On May 28, 1966, Richmond beat Sydney 88-63, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 88-63 in league history.
That makes 88-63 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 89-63 has happened 3 times and 88-64 has happened 5 times.