Akron, OH (My Sportsbook) - Padraig Harrington carded a three-under 67 Saturday to take a three-stroke lead after three rounds of the WGC-Bridgestone Invitational.

Harrington, a three-time major champion, completed 54 holes at 10-under-par 200, which was good for his third 54-hole lead on the PGA Tour. The Irishman won one of the previous two chances when leading after three rounds.

Six-time winner Tiger Woods fired the low round of the day with his five-under 65. He finished three rounds at seven-under-par 203. The world's No. 1 player won this title three straight years from 1999-2001 and again from 2005-07.

Jerry Kelly (69) and Tim Clark (71) share third place at minus-five on the South Course at Firestone Country Club.

British Open champion Stewart Cink shot a two-under 68 to move into a share of fifth place. He is one of 10 players tied at four-under-par 206.

Phil Mickelson struggled Saturday in the damp conditions. He mixed two birdies with two double-bogeys and three bogeys in his round of five-over 75. That dropped him into a share of 53rd at four-over-par 214.

Harrington opened with a birdie on the first, but gave that stroke back as he tripped to a bogey on the par-four fourth. He parred seven straight holes from the fifth.

Just after Woods birdied the 18th to grab a share of the lead at minus-seven, Harrington responded with a 29-foot birdie putt on the 12th.

The Irishman made it two in a row as he poured in a 22-footer for birdie on the 13th. Harrington pushed his lead to three with an eight-foot birdie putt on 15.

Harrington's third to the par-five 16th bounced over the green and plugged in a bunker. He was unable to get up and down for par and his lead was down to two.

He bounced right back with 20-foot birdie putt on the 17th to regain his three-stroke cushion. Harrington closed with a two-putt par.

"I started out, things weren't quite going for me, a couple of birdie putts looked like they were dropping and they didn't," Harrington explained. "I felt great going into the back nine and gave myself a few chances and holed a few putts."

Harrington knows what he needs to do on Sunday to walk away with his first title of the year.

"At the end of the day, I'm going to have to play well tomorrow," Harrington said. "Whether I am ahead by one, two or three shots, is kind of irrelevant. I'm going to have to play well."

Woods birdied the par-three fifth, but gave that stroke back with a bogey on the eighth. He came right back with a birdie on No. 9 to make the turn at minus-three.

"I had just a stupid bogey there at eight with a wedge in my hand, hit it right of the hole," Woods said. "So it was nice to get it right back at the very next hole at nine, nice birdie there."

The six-time winner of this event started to make his move at the 13th. He dropped in a four-footer for birdie there and rolled one in from off the green at the 15th.

Woods made it two in a row as he nearly holed his third to the par-five 16th, but settled for a tap-in birdie to get within one. After a par on 17, Woods sank a seven-footer for birdie at the last to briefly share the lead with Harrington.

"I hit the ball well today. Even though I didn't hit a lot of greens, they were just off the edges," Woods stated. "I was able to get up and down and give myself some putts for par. All day, the putts I had for birdie, I made and that is the only thing that allowed me to get back in this tournament."

Cink was joined in fifth place at minus-four by Miguel Angel Jimenez (66), Mike Weir (69), U.S. Open champion Lucas Glover (68), Robert Allenby (69), Woody Austin (69), Kenny Perry (66), Masters winner Angel Cabrera (68), Zach Johnson (69) and Oliver Wilson (68).