Aronimink feels more like US Open than US Open did

That was the consensus of most players, and details of some of the rounds added more credence. Vegas managed to get around Aronimink without making a bogey. On No. 16, the easiest of the two par 5s, Wilson figured he had squandered his chance until he flopped a shot out of the rough and it firmly struck the pin and dropped for eagle.

Ogilvie said the key to his round was a bogey on No. 10. From where he hit his tee shot, left into the deep grass and trees, he figured he would be lucky to make double bogey. Instead, he managed to get up-and-down from about 90 yards to limit the damage.

"I didn't do anything crazy on the greens. I just played them solid," Ogilvie said. "This course is set up like a U.S. Open. The fairways are a little bit wider, but it's definitely playing similar — except for this year's U.S. Open."

Garrigus was the low American at the U.S. Open, where he tied for third. He shot all four rounds under par at Congressional, and still finished 10 shots behind. He struggled to break par at Aronimink and was close to the lead after one round.

"Anything under par today is great," he said. "They changed a few of the greens, a little more severe around the edges, so you can hit a pretty good shot and not get rewarded. But you know where you can miss it. You know where you can't hit and you know where you can.

"I don't think double digits is going to win this week."