Ogrin had a run of six straight birdies and came within one stroke of the course record set by Keith Clearwater in 1993. He came in on 15 under on 195.
Woods, however, was ominously close after a 64 gave him second place on 196. Victory would give him his third straight win - he won the Masters and then, after taking four weeks off, won last week's Byron Nelson Classic - and he seems to have all but played his way into the US Ryder Cup team already.
The US captain, Tom Kite, is delighted with the way his team is shaping up and expects his 12-man squad to be loaded with "fantastic" players.
"If I had a wish list, the top 25 is very close to that," he said. Kite, himself 25th in the list, said that Woods, Tom Lehman and Mark O'Meara have virtually reserved three of the berths while the next four in the points standings - Phil Mickelson, Scott Hoch, Brad Faxon and Davis Love III - "are in good shape".
"If you're looking down the list, you can imagine how happy I am about what's going on with the Ryder Cup right now," Kite said. "It's not a whole lot different than what I expected, or what I would have hoped for."
As captain, Kite can pick two others from outside the top 10 to try to recapture the Cup against Europe on 26-28 Sept at the Valderrama Club in Spain.Reuse content