Claimed a maiden European Tour title at the Australian PGA Championship in 2017, overhauling compatriot Jordan Zunic on home soil. Smith then became the first man since Robert Allenby in 2001 to successfully defend the title when he triumphed the following year.

Partnered Jonas Blixt to victory in the Zurich Classic of New Orleans for his first PGA TOUR victory in 2017 but would wait nearly three years for his first individual title which came at the Sony Open in Hawaii in 2020. He then won the Zurich Classic of New Orleans for the second time in 2021, then partnering with compatriot Marc Leishman.

Won his first Major Championship at The 150th Open at St Andrews, producing a sensational bogey-free final round 64 to win by one stroke from Cameron Young. It was the crowning moment of a break-out 2022 season which included victories at the Sentry Tournament of Champions and THE PLAYERS Championship. He became just the second player next to Jack Nicklaus to win both The Open and THE PLAYERS in the same season.

He is an avid supporter of Brisbane Broncos, the rugby league team in his hometown and is the owner of a pet dachshund named Kendrick. Also a keen petrolhead who loves tinkering with old cars in his spare time. Also has ambitions to open a coffee shop when he retires from golf.