Sprinting phenomenon Jack Hale made it a double gold weekend, adding the 200 metres Australian All Schools crown to his 100 metres title.

The 16-year-old Tasmanian has become the golden boy of Australian athletics after a swag of astonishing 100m results, culminating in his wind-assisted 10.13 seconds in Adelaide on Saturday.

His victory over 200m in a time of 21.29, this time with a legal wind, was a personal best.

"I knew I'd go well in the 200m here. I've been doing a few 150s in training recently. At first I was laying on the ground for 20 minutes exhausted at the end of them, now I can get through them and recover much better," he said.