After going out in 30 to move into a tie for the lead, he birdied the next three holes to reach 9 under through 12 holes, then hit his approach to 5 feet on the 13th. Another birdie would have put him at 10 under for the round, needing only three birdies over the final five holes to hit golf's magic number.
"The way things were going, it was realistic with a par 5 in there," Scott said.
The slick putt slid by on the right, and Scott returned his focus to the next shot. He escaped with par on a good two-putt from 40 feet on the 14th, then hit his best shot of the day. With 248 yards to a pin at the back right of the green behind a bunker, Scott hit 5-wood that faded slightly and held its line over the final 100 yards, catching a ridge and settling 5 feet away.
Then he went back to crunching numbers.
"When I got up there and saw it so close, I did the math again," Scott said with a smile. "I thought, 'OK, here we go."'
And there it went. It was another fast putt that Scott didn't want to run too far by the cup in case he missed, and the speed was such that it immediately lost its line and tailed off to the right.
"Going 11 under with three to go, there's a good chance," Scott said. "I shouldn't be so good at math."
But he had no trouble adding his scores to 62, matching his lowest score on the PGA Tour.
"We were watching it," Ben Curtis said. "It looked like 59 there for a while, especially through 12 or 13 holes. But he still could have the low score by six shots today."
It was only five U.S. Open champion Geoff Ogilvy and Trevor Immelman shot 67s.
Pampling was one shot out of the lead and five clear of Scott when he teed off, playing bogey-free and picking up enough birdies to leave him satisfied. It just wasn't enough to keep his nose in front, even after rounds of 65-68.
"You'd like to be leading after two rounds if you shoot those numbers," Pampling said. "But obviously, the conditions were pretty nice early on, and Adam took full advantage. I couldn't believe it. He kept going, didn't he? But the chance was there."
They will be in the final pairing Saturday, two Australians separated by 11 years. Pampling was an apprentice when he first met Scott at a place called Twin Waters.
"One of the guys said this young kid was out there playing," said the 37-year-old Pampling. "They were talking about how good he was. I don't know what score he shot there, but that was the first time I had met him."