Tiger Tracker: Saturday

Summary: A second straight 2-under 70, courtesy of 7 birdies and 5 bogeys. Birdies on Nos. 13, 14 and 15 were the key, keeping him within sight of the lead. Afterward, Tiger said he struggled with the pace of the greens and fought his swing, but was pleased with the result. "I just need to clean up my round," he said.

Hole No. 18, Par 4, 465 yards: A drive to the fairway, a beautiful iron to 3 feet and a tidy birdie putt put a nice exclamation point on Tiger's round.

Hole No. 17, Par 4, 440 yards: Tiger loses his tee shot way right. He drops his club in disgust, but keeps his thoughts to himself. He has to hit his approach well to the right of the green, then pitches on. He misses the uphill 6-footer, though, making bogey and falling 5 shots off Westwood's lead.

Mickelson blocks his approach right on 18, landing it in the crowd. He then delights the crowd by lofting a patented Phil Phlop to about phive pheet (couldn't resist). He makes the putt for a 67, finishing at 11 under, one shot off the lead.

Couples finishes at -7 after a bogey at 18.

Hole No. 16, Par 3, 170 yards: Tiger makes a routine par, never scaring the hole with his 15-foot birdie attempt.

Mickelson bogeys 17 to drop into a tie for the lead.

Hole No. 15, Par 5, 530 yards: Tiger is over the green in 2, then chips about 10 feet past the cup. The birdie putt is in all the way, bringing him to -8. Choi also birdies to get to -8.

Hunter Mahan birdies the last to finish at 6 under.

Hole No. 14: Par 4, 440 yards: After his drive rolls just off the right side of the fairway, Tiger hits a beautiful approach to 3 feet, then makes the birdie putt to get to 7 under, 5 shots off the lead.

Mickelson taps in from mere inches for birdie at No. 15 after nearly making his third straight eagle. At 12 under, he's the new leader.

Fred Couples chips in for eagle at No. 15 to get to -8.

The front bunker at 12 catches both Westwood and Poulter. Westwood makes bogey, dropping into a tie for the lead with Mickelson. Poulter makes double bogey.

Hole No. 13: Par 5, 510 yards: Tiger reaches the green in 2 from about 250 yards, but his approach settles into the front right of the green, well below the hole. A two-putt birdie gets him back to even par for the day.

Mickelson holes out from 139 yards on No. 14 for back-to-back eagles! That gets him to -11, 1 shot behind Westwood. He's only the third player in Masters history with back-to-back eagles.

Hole No. 12: Par 3, 155 yards: Tiger finds the front bunker off the tee, blasts to 5 feet and makes the par-saver. Meanwhile, playing partner Choi birdies.

Mickelson eagles No. 13 to get to -9 and solo second place, 3 shots behind Westwood.

Hole No. 11: Par 4, 505 yards: Tiger reaches the right side of the green from more than 200 yards out. The flag, however, is on the left. He rolls his 60-foot approach close and taps in for par.

Westwood rolls in a birdie putt on No. 10 to get to -12 and a 4-shot lead.

Hole No. 10: Par 4, 495 yards: After splitting the fairway with his drive, Tiger brings his approach in right over the flagstick, leaving a 12- to 15-footer for birdie. He misses the left-to-right swinger, then misses a 4-foot comebacker and makes bogey.

Hole No. 9: Par 4, 460 yards: Tiger's in the woods to the right of the fairway. He hits the green with his approach from the pine straw, but the ball doesn't make it all the way up to the pin. Still, he shouldn't have trouble making par -- and he does, completing an even-par front nine.

K.J. Choi hits a gorgeous approach to about 2 feet at No. 9, then makes the birdie putt to get to -6.

Looking at an eagle putt for a 5-shot lead, Westwood rolls the ball 4 feet past the cup, but makes the comebacker for birdie to get to -11.

Hole No. 8: Par 5, 570 yards: Tiger is just off the right side of the green in 2, seemingly well within range of a birdie. He runs his chip shot 4 feet past, then makes the birdie putt.

Hole No. 7: Par 4, 450 yards: Trying to hit his patented stinger with a fairway wood, Tiger leaves the ball in the left rough. His approach runs barely through the green and again, he is audibly unhappy. Putting from the fringe, he runs his first effort 5 feet past the hole, then misses his par putt.

Leader Westwood chooses a driver on No. 7 and misses the fairway WAY left. He recovers nicely and hits the green with his approach, but he'll have a long 2-putt. Not to worry, he saves par.

Crowd favorite Tom Watson birdies No. 10 to get to 4 under.

Mickelson makes a short birdie putt on No. 8 to get to 8 under.

Hole No. 6: Par 3, 180 yards: Well, he didn't throw his club after a loose tee shot that left him on the wrong side of this green, about 70 feet from the hole, but Tiger's self-admonition was clearly heard on camera: "Tiger Woods, you S**K!" He rams his first putt about 18 feet past the cup. His par putt just misses the left edge of the cup.

After being bunkered off the tee at No. 5, Poulter lips out his par putt on No. 5 to drop to -7.

Hole No. 5, Par 4, 455 yards: Tiger's just off the front edge of the severely sloped green in two, and his first putt is well off the mark. But he drains a 5-footer to save par.

Westwood birdies the fourth to stretch his lead to 2 shots.

Hole No. 4: Par 3, 240 yards: Tiger bogeys the first par 3 for the second day in a row.

Hole No. 3: Par 4, 350 yards: On one of the trickiest holes at Augusta National, Tiger drains a 30-foot, left-to-right putt for his second birdie of the round. His drive hit a tree but bounced back into the fairway.

Hole No. 2: Par 5, 575 yards: Tiger lays up, wedges to 20 feet, then runs his birdie putt just barely past the hole and taps in for par.

Lee Westwood makes a 20-footer for birdie on No. 1 and takes the lead alone at 9 under.

Poulter saves par on the first after his bad drive.

Phil Mickelson birdies No. 3 to get to 8 under, tied for the lead.

Hole No. 1: Par 4, 445 yards: Tiger splits the fairway with his drive. He lands his approach about 15 feet below the hole. He makes the birdie putt!

Ian Poulter pulls his first drive left, into the gallery.

It's 70 degrees and sunny in Augusta as the leaders get ready to tee off in the third round. Humidity is just 22 percent, with an 8 mph ENE wind.

Heath Slocum is 4 under through his first seven holes, moving to 3 under for the tournament.

Whoever comes out of today with the lead will be a large favorite to take the green jacket. In nine of the past 11 Masters, the winner has held at least a share of the third-round lead.

Fred Couples birdies each of the first two holes to get to 5 under.

For Friday's Tiger Tracker, click here .

For Thursday's Tiger Tracker, click here .