A sensational seven-under 63 on the second day at Southern Hills has seen Tiger Woods take the lead at the USPGA Championship but Australian Geoff Ogilvy remains in contention at equal third, three strokes behind the world number one. Woods, though, came within one stroke of being the first golfer to hit a 62 in a major as he put a disappointing first round behind him to charge into the lead at six-under overall, two strokes ahead of Scott Verplank and three ahead of Ogilvy and Stephen Ames. After a superb start on the first day at Southern Hills, Woods had struggled on the back nine on Thursday afternoon. But the world number one picked up the pieces on Friday and proceeded to post eight birdies and one bogey on his way to carding 63. Just behind Tiger is compatriot Scott Verplank, who overcame injury and an ongoing battle with diabetes to card a four-under 66 on day two at the Oklahoma course after posting an even-par score on the first day. One stroke behind Verplank is Ogilvy, who, at one stage during the day, threatened to take the lead outright. After being even on the way out, Ogilvy lifted his game on the back nine and posted four birdies going into the final two holes. But two consecutive bogeys on 17 and 18 prevented the Australian from taking out second behind Tiger and he had to be content with equal third alongside Canadian Stephen Ames. In equal sixth position on the leaderboard, two strokes behind Ogilvy, is John Senden, who maintained his consistent form at the last major of the year. After carding a one-under 69 on Thursday, Senden had declared how impressed he was with the course, but the Australian was probably less happy with it when he double bogeyed the 10th hole. However, Senden, one of the best drivers on the PGA tour, re-grouped mentally and hit back with three consecutive birdies before a two bogey finish on the last two holes prevented him from being alongside Ogilvy as he finished the round with an even par score to be one-under overall. One stroke further back is Adam Scott, who put several weeks of poor form behind him to post a two-under 68 and be on even-par overall, one stroke ahead of Stuart Appleby who also carded 68. Further back is Nathan Green (68 and three-over overall), while Nick O&aposHern (72) and Rod Pampling (74) are both at four-over. It wasn&apost all good news for the Australasian contingent though as Robert Allenby, Aaron Baddeley, Steve Elkington, Stephen Leaney and New Zealand&aposs Michael Campbell missed the cut. Second Round of the PGA Championship, Oklahoma: -6 Tiger Woods 71 63 -4 Scott Verplank 70 66 -3 Geoff Ogilvy (Australia) 69 68, Stephen Ames 68 69 -2 Woody Austin 68 70 -1 Pat Perez 70 69, Niclas Fasth 71 68, John Senden (Australia) 69 70 E John Daly 67 73, Ernie Els 72 68, Arron Oberholser 68 72, Camilo Villegas 69 71, Adam Scott (Australia) 72 68, Paul McGinley 74 66 1 Retief Goosen 70 71, Stuart Appleby (Australia) 73 68, Troy Matteson 72 69, Graeme Storm 65 76 also: 3 Nathan Green (Australia) 75 68 4 Nick O&aposHern (Australia) 72 72, Rod Pampling (Australia) 70 74 5 Richard Green (Australia) 72 73 missed cut: 6 Robert Allenby (Australia) 74 72 7 Aaron Baddeley (Australia) 73 74 9 Michael Campbell (New Zealand) 74 75 13 Steve Elkington (Australia) 75 78 15 Stephen Leaney (Australia) 77 78