Martin Kaymer set a US Open record with a game so dominant that he did more than just build a six-shot lead.
Kaymer opened with a short birdie and rolled his way to a second straight round of five-under 65 and no bogies.
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.
Kaymer played early on a Pinehurst number two 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, with only three players in the afternoon cut into his eight-shot lead.
Brendon Todd kept this from really getting out of hand as he made two tough pars from the bunker late in his round for a bogey-free 67.
Woods' record matched
His score puts him in the final group on the weekend in his first major.
Kaymer tied the record for the largest 36-hole lead at the US 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."
Brandt Snedeker had a 68 and joined Na at three-under 137 with only nine others who were under par going into the weekend.