John Senden shot a 6-under 66 in calm morning conditions to take a two-stroke lead after the first round of the Australian Open on Thursday.
Senden had eight birdies but back-to-back bogeys at The Lakes, while Englishman Justin Rose, who birdied three of his first four holes, was level with Australians Kim Felton, Brendan Jones and Richard Green and Gareth Paddison of New Zealand after 68s.
Rose dropped his only shot of the day when he muffed a greenside flop shot on the par-4 third hole, his 12th of the round.
''I decided to try and hit the high, sexy lob - that didn't really come off,'' Rose said.
Senden had a consistent year on the PGA Tour, making 19 cuts from 22 events, including five top-10 finishes.
''The results have shown in the past couple of years. I have been inside the top 30 and been consistent,'' Senden said. ''I have taken those feelings and brought them home to Australia. I feel I can keep improving and keeping knocking on the door in every event I play.''