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Golf roundup

Dustin Johnson has one-shot lead at Riviera

Dustin Johnson hit a tee shot on the third hole in the first round of the Northern Trust Open at the Riviera Country Club in Pacific Palisades, California.

Stephen Dunn/Getty Images

Dustin Johnson hit a tee shot on the third hole in the first round of the Northern Trust Open at the Riviera Country Club in Pacific Palisades, California.

Dustin Johnson moved down the coast of California and brought his game with him Thursday in the Northern Trust Open.

So did Jimmy Walker.

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Johnson made six birdies on a warm, sunny day at Riviera in Los Angeles for a 5-under-par 66, giving him a one-shot lead when the opening round was suspended because of darkness. Walker birdied his last three holes and was in the large group at 67 that included Francesco Molinari and Torrey Pines winner Scott Stallings.

Four days ago, Johnson closed with a 66 in the gray, cold weather of Pebble Beach to finish one shot behind Walker. In conditions that could not have been any different — and could not have been any better — he made birdie on all of the par 5s at Riviera and only had one bogey on his card, at the long par-3 fourth.

The only comparison was the quality of his golf.

‘‘It was cold, windy, and wet at Pebble on Sunday. Here, it’s not a lot of wind and perfect conditions. It’s sunny and a really nice temperatures,’’ Johnson said. ‘‘It’s still golf, though. You've still got to adjust no matter what you’re doing.’’

That was no trouble for Walker, whose win in the AT&T Pebble Beach National Pro-Am was his third of the season. He drove his RV down from the Monterey Peninsula, got up at 4:30 a.m. Wednesday to appear on the Golf Channel, and then went right back to work.

Walker was in the middle of the pack until his tee shot on the par-3 16th settled just over a foot from the cup. He nearly reached the par-5 17th in two to set up a simple birdie, then finished with one of his best shots — an 8-iron from 184 yards out of a flyer lie in the rough to the back of the green and a 30-foot putt.

Jim Furyk, Keegan Bradley, and Rickie Fowler were among those at 68.

LPGA — Suzann Pettersen carded a 6-under 66 to lead the Australian Open in Melbourne by a shot after the first round at the Victoria Golf Club.

Pettersen had nine birdies and three bogeys, holding off a series of challengers led by Marion Ricordeau of France.

Ricordeau, who had eight birdies, a bogey, and a double bogey, briefly drew level with Pettersen before finishing among a group of four players with rounds of 67.

Tied in second place were Park Hee-young and Americans Jaclyn Sweeney and Jessica Korda.

World No.4 Lydia Ko was among a larger group at 4 under after a mixed opening round. Ko was 1 under after her opening nine but came home with five birdies and two bogeys, including birdies at her last two holes.

European — In East London, South Africa, Ricardo Santos fired a 9-under 62 for a two-shot lead after the first round of the Africa Open.

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