Head, who assumed the Australian vice-captaincy for the two-Test series alongside Patrick Cummins, notched his first Test ton from 155 deliveries to help rescue his country from 3/28 when he arrived at the crease in the ninth over.
Playing just his eighth Test, Head’s innings follows three half-centuries earlier this summer in another promising performance ahead of this year’s Ashes series in England.
He combined with Queenslander Joe Burns (172*) in a record-breaking 308-run fourth-wicket partnership at Manuka Oval.
Head was eventually dismissed for 161 off 204 deliveries after going on a run-scoring spree after Tea, smashing 63 runs from just 50 balls.
The 25-year-old is the first South Australian to score a Test century since Jason Gillespie’s famous 201* in his final Test against Bangladesh in April of 2006.