Home hero Cameron Smith held off challenges from Jason Scrivener and Ryo Hisatsune to claim a third Australian PGA Championship title by three shots at Royal Queensland on Sunday.

British Open champion Smith's 14-under par total, courtesy of a three-under par final round, secured him victory at the rain-hit A$2 million ($1.35 million) event co-sanctioned by Europe's DP World Tour.

The 29-year-old, back in Australia after nearly three years blighted by the COVID-19 pandemic, previously won back-to-back titles at the event in 2017 and 2018.

Hisatsune and Scrivener were hot on overnight leader Smith's heels towards the midway point of the final round, but were unable to keep up their momentum and eventually faded away to finish in joint second.

Englishman John Parry and Australia's Min Woo Lee finished tied fourth, while two-times winner Adam Scott carded a three-under 68 to end tied for 28th.

Smith will next be in action at the Australian Open, the regional circuit's most prestigious event, which returns in Melbourne next week as an integrated men's and women's tournament after being cancelled twice during the pandemic.

(Reporting by Aadi Nair in Bengaluru; Editing by Kim Coghill)