Waldorf carded a bogey-free 4-under 67 to finish 54 holes at the TPC at Scottsdale at 16-under-par 197. The 39-year-old Californian is one shot clear of Kenny Perry (64) and Chris DiMarco (66).
John Daly stands alone in fourth place at 14-under, thanks to a Saturday 66. Daly is in search of his first tour title since capturing the 1995 British Open.
Its going to come down to the wire, said Daly, a huge favorite among the raucous crowd. Its going to come down to putting.
Putting wasnt what awed spectators Saturday. Daly hit his tee shot 379 yards on the par-4 finishing hole and spun a wedge to four feet.
Its just nice to be in the hunt again, he said.
Vijay Singh, winless since his 2000 Masters triumph, was just one shot off the lead entering the third round, but now finds himself six back after a 1-over 72. Singh eagled the par-5 third, but missed a pair of par putts inside of three feet.
Saturday began with the completion of the second round, which had been extended due to a 45-minute frost delay Friday. Once a cut was made, 70 players went out in threesomes on split tees.
Waldorf parred his first seven holes, and 11 of his first 12. His lone birdie on the front nine came at the par-4 eighth, where he grazed the cup with his approach shot. He birdied both par-5s ' the 13th and 15th holes ' on the back nine, as well as the 332-yard, par-4 17th.
It was a tough round, just nibbled the course and struggled on the front side, said Waldorf. On the back nine, I took advantage of the easier holes, the two par-5s and the short 17th.
Waldorf, a four-time tour winner, is seeking his first victory since the 2000 National Car Rental Classic, when he shot a final-round 62 to overcome a six-shot deficit to 54-hole leaders Steve Flesch and Tiger Woods.
Last year, he collected only one top-10 finish and ended the season 120th in earnings, his worst showing since the 1990 season.
News, Notes and Numbers
*Former Arizona State Sun Devil Per-Ulrik Johansson (65) is three back at minus 13. Johansson was a teammate of Phil Mickelson on the 1990 NCAA Championship team.
*Charles Howell III birdied his final five holes Saturday to shoot 66. He stands at 10-under, six off the lead.
*Mike Weir played the final four holes in even par, making a triple bogey and three birdies. He is 3-under for the tournament following a 2-over 73.