Victorian Anthony Houston shot a blistering course-record 7-under 65 at the Fiji International, leading 10 Australians atop the first-round leaderboard.
Houston eagled the par-5 17th and had six birdies and a bogey at Vijay Singh-designed Natadola Bay.
The European Tour is sanctioning the event for the first time, teaming with the PGA Tour of Australasia.
Stephen Leaney and Jake Higginbottom were a stroke back, Jason Norris, Damien Jordan, Matthew Giles, Aaron Pike and Aaron Wilkin shot 67, and Ryan Haller and Matthew Griffin followed at 68.
Brandt Snedeker, coming off the United States' Ryder Cup victory Sunday in Minnesota, topped the group at 69 along with fellow Americans Boo Weekley and Ryan Carter.
Singh had a 70. The 53-year-old Fijian is a three-time major champion.
Houston won't hold the course record for long though with re-design works starting on Monday after the Fiji International.
"I didn't even know it was a course record until I got into the scorers' hut and the lady told me, it was a good feeling," said Houston.
"I think what they are going to be doing with the re-design is the right thing."
"I think on days like today its fine but when the wind gets up a few of the greens become almost unplayable."
American Heath Slocum also shot 70.
Struggling Australian Robert Allenby shot a 71.
