Green is four shots shy of esteemed South Korean Inbee Park and England's Jodi Ewart Shadoff, who are joint leaders after Friday's second round at Royal Adelaide.

Ewart Shadoff and Park, a seven-time major winner and reigning Olympic champion, are 10 under with the Korean firing a four-under 69 on Friday.

ROUND THREE TEE TIMES

While Australia's five-time Open champion Karrie Webb missed the cut, Perth's Green is six under after a rollercoaster second round 71 featuring five birdies and three bogies.

And if Green expects to become just the fourth Australian to win her national Open, she'll have to catch Park, a former World No.1 with 19 LPGA Tour titles in her decorated career.

"She's obviously a great player," Green said.

"It's going to be very challenging considering all she has achieved in her career, it's not the first time she has led after two rounds.

"Hopefully I can have some putts drop and be in contention.

RIGHT: Park shares the lead with Ewart Shadoff heading into the weekend at Royal Adelaide. PHOTO: Mark Brake/Getty Images.

"It's always nice to be up the top of the leaderboard at a home event and hopefully there will be big crowds out this weekend and cheering us on."

Park and Ewart Shadoff hold a one-stroke lead from American Jillian Hollis, with Korean Ayean Cho and American Marina Alex next-best at eight under.

Korean star Park, renowned for her nerves of steel, was uncertain how much her imposing reputation would daunt the chasing pack.

"I wouldn't know how they would feel," Park said.

"It definitely gives me a lot of excitement being on the top of the leaderboard and being in contention in the weekend – that's the reason why I'm playing."

Green is the best chance of joining Webb, Jan Stephenson and Jane Crafter as Australian winners of the Open.

Emerging 21-year-old Sydneysider Robyn Choi (four under), World No.8 compatriot Minjee Lee (four under), Katherine Kirk (even) and Karis Davidson (even) were the only other Australians to make the cut.

Stalwart Webb missed the cut for just the third time in her 23 Open campaigns, finishing two over.

- Steve Larkin, Australian Associated Press