Has an AFL game ever ended 30-30?
Exactly once. On May 9, 1903, St Kilda and Essendon drew 30-30, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 30-30 in league history.
That makes 30-30 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 31-30 has happened 2 times and 30-31 has happened never.