Seeking the 75th victory of his legendary career, Woods fired a three-under par 69 in a third-round that was wiped out Saturday by fog, then birdied three of the first seven holes in his fourth round before darkness halted play.
Lee Westwood and Rory McIlroy moved closer to the Match Play Championship title, and the No.1 ranking that would come with it, by winning their matches Friday and reaching the quarterfinals.
Former world no. 1 Tiger Woods was eliminated by Nick Watney 1 up on Thursday in a second-round match at the $8.5 million World Golf Championships Match Play Championship.
Kevin Na won the Justin Timberlake Shriners Hospitals for Children Open on Sunday for his first PGA Tour title, hitting three birdies near the end of his round to pull away for a two-stroke victory over Nick Watney.
Nick Watney, a two-time winner on the US PGA Tour this season, fired a seven-under 64 on Saturday to join Kevin Na atop the leaderboard after three rounds of the tour's $4.4 million Las Vegas event.
Nick Watney opened a three-stroke lead at the US PGA Championship by making birdies on five of his first seven holes on his way to 12 under in the third round.
Yet another potential first-time PGA Tour winner topped the third-round leaderboard in the Zurich Classic.