1988 was a special year for Dunstall. In Round 19 against he brought up his first century of goals in a season. He had kicked 98 goals going into the match, and Hawthorn supporters expected the required two goals to come sooner rather than later. However, Dunstall would miss his first two shots and drop a few marks before putting through his first goal at the 17-minute mark. The moment of truth came at the 30-minute mark of the first quarter when teammate Dermott Brereton kicked the ball high into the air. It took a vicious bounce over Fitzroy defender Brett Stephens' head and landed in Dunstall's arms. The goal was kicked and the fans came running onto the ground to congratulate only the second Hawthorn player after Peter Hudson to kick 100 goals in a season.