Scottsdale, AZ (Sports Network) - Phil Mickelson missed history-making scores the first two days, but matched the tournament's 54-hole scoring record on Saturday.
Mickelson birdied five of the last six holes in round three for a 7-under 64. His 54-hole total of 24-under-par 189 matched Mark Calcavecchia's record from 2001.
The total of 189 is the second-lowest 54-hole total in PGA Tour history. Mickelson is a two-time winner of this event and owns 40 career PGA Tour victories.
Mickelson had a chance to shoot 60 on Thursday, but parred the last hole. On Friday, with a chance to post a new tournament 36-hole record score, he double-bogeyed the final hole at TPC Scottsdale's Stadium Course.
Brandt Snedeker carded a 6-under 65 to move into second place at minus-18. Padraig Harrington, who is playing this event for the first time, fired a 63 of his own to jump into a share of third place at 16-under-par 197. He was joined there by Ryan Moore, who shot 65 in round three.
Troy Matteson carded a 66 to move into fifth place at minus-15, while Brendan Steele (65) and Bill Haas (70) are one stroke back at 14-under 199.
MORE TO FOLLOW.