Has an AFL game ever ended 59-50?
Yes. AFL has seen a final score of 59-50 4 times. It first happened on May 11, 1912, when Essendon beat Carlton, and most recently on July 15, 2018, when Fremantle beat Port Adelaide.
That makes 59-50 the 947th most common final score out of 6,607 that have ever occurred in AFL. One point away, 60-50 has happened 1 times and 59-51 has happened 4 times. At one point the score disappeared for 53 years, between 1932 and 1985.