Jarrod Lyle had the early lead at the Australian Open with a 7-under 65 Thursday, while Dustin Johnson led an American contingent on the leaderboard at The Lakes.
Johnson led a small group of Americans who got off to a good start in Australia as their tuneup for the Presidents Cup. One of their better scores belonged to someone who won't even be playing in matches U.S. captain Fred Couples.
Lyle had a one-shot lead over Johnson, who overcame a sloppy start by running off five straight birdies on the back nine.
"I was a little rusty,'' Johnson said. "It was my first time in competition for about six weeks.''
Couples, who played the 50-and-old Champion Tour's final event last week in San Francisco, played in the group behind Johnson and birdied his final hole at the par-3 ninth for a 67.