Has an AFL game ever ended 129-100?
Exactly once. On July 16, 1983, St Kilda beat Sydney 129-100, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 129-100 in league history.
That makes 129-100 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 130-100 has happened 1 times and 129-101 has happened 2 times.