"I don't know what golf course Inbee Park is playing," Green said.

Park added to her legend by cruising to a three-shot triumph at Royal Adelaide on Sunday to capture her 20th LPGA Tour title.

The seven-time major winner tamed wicked winds which made a mess of most others, including Green.

The Western Australian finished tied 13th at six-under par – eight shots adrift of Park, who claimed her first LPGA Tour title since March, 2018.

FINAL LEADERBOARD

"I didn't know when my 20th win was going to come and everybody was like 'are you stuck?'," Park said.

"And finally I get to reach the 20th in Australia. It's a special place to reach that position."

Perth's Green stumbled with three early bogies, cruelling her quest to bridge the gap on Park, whose winning margin was the same as the three-shot cushion she slept on as overnight leader.

"Today was frustrating," Green said.

"I felt like I hit some good shots but just not the right club choices so I got myself in a bit of a pickle early.

"It was tough but I scrambled well on the back nine."

Former World No.1 Park carded one over in the blustery conditions and was never seriously challenged.

The reigning Olympic champion finished well clear of American Amy Olson (11 under) with France's Perrine Delacour (10 under) third.

RIGHT: Green was the best of the Aussies, finishing T13 at Royal Adelaide. PHOTO: Mark Brake/Getty Images.

The seemingly nerveless Park started Sunday's final round wary of her nearest challenger, 19-year-old compatriot Ayean Cho.

But Cho's hopes of catching her esteemed countrywoman were rapidly dashed: a birdie at the 2nd hole was followed by three bogies in the next four holes.

American veteran Olson tried to put some pressure on Park, firing a superb three-under round in often treacherous winds.

"It was a battle out there," Olson said.

RELATED: Take a look inside Park's winning bag

Only one player shot a lower round than Olson on Sunday – American Cristie Kerr carded a four-under 69. Like Cho, she finished eight under and tied for sixth.

Green headed the Aussie locals, with World No.8 Minjee Lee finishing four under and 21-year-old Robyn Choi three under.

Katherine Kirk finished at three over and Karis Davidson endured a torrid five-over final round to end at 11 over.

- Steve Larkin, Australian Associated Press