PINEHURST, N.C. — Martin Kaymer set a U.S. Open record Friday with a game so dominant that he did more than just build a six-shot lead.
He managed to bring Tiger Woods into the conversation at a major he's not even playing.
Kaymer opened with a short birdie and rolled his way to a second straight round of 5-under 65 — this one without a bogey. He set the 36-hole scoring record at 10-under 130 and left the rest of the field wondering if the 29-year-old German was playing a different course, or even a different tournament.
"If he does it for two more days, then we're all playing for second spot," said Adam Scott, the world's No. 1 player.
Such talk once was reserved for Woods, still home recovering from back surgery.
Kaymer played early on a Pinehurst No. 2 course that received a burst of showers overnight. That red 10 on the leaderboard next to his name was a daunting sight the rest of the day.
He led by eight shots when he finished, and only three players in the afternoon cut into that deficit.
"I heard he played the No. 3 course. Is that true?" Kevin Na said after a 69 put him seven shots behind. "It's unbelievable what he's done. Is 4 or 5 under out there? Yes. Ten under out there? No, I don't think so. I guess it was out there for him. I watched some of the shots he hit and some of the putts he's made and he looks flawless."
Brendon Todd kept this from really getting out of hand. He made two tough pars from the bunker late in his round for a bogey-free 67 to get within six shots, putting him in the final group on the weekend in his first major.
"Kaymer's performance has been incredible," Todd said. "He's playing a brand of golf that we haven't seen probably in a long time, since maybe Tiger."
Kaymer tied the record for the largest 36-hole lead at the U.S. Open, first set by Woods at Pebble Beach in 2000 and matched by Rory McIlroy at rain-softened Congressional in 2011.
Woods went on to win by 15 shots. McIlroy set the 72-hole scoring record and won by eight.
"I played Congressional and I thought, 'How can you shoot that low?'" Kaymer said. "And that's probably what a lot of other people think about me right now."
McIlroy thought the German's feat was more impressive, mainly because of the nature of Pinehurst No. 2 and the turtleback greens created by Donald Ross. Yes, they were softer than expected and held quality shots. But there is trouble lurking around every corner. Kaymer just hasn't found it — yet.
"If someone had told me that I was going to be standing here 1-under par after 36 holes at the start of the week, I would have taken it," McIlroy said after his 68 left him nine shots behind. "But what Martin has done over the first couple of days has made 1-under par look pretty average."
As impressed as everyone was, none was ready to concede just yet.
Pinehurst No. 2 has not played close to its full length of 7,562 on the scorecard, and it has not been nearly as fast as it had been during the three days of practice. And strange things can happen at a U.S. Open.
Even so, they all needed some help from Kaymer, who last month won The Players Championship.