Brandt Snedeker fired a 6-under 64 on Saturday to move into a share of the lead after three rounds of the Tour Championship.
Snedeker was joined in the lead by Justin Rose, who carded a 2-under 68 in round three. The duo ended 54 holes at 8-under-par 202.
Ryan Moore is alone in third place at minus-6 after a third-round 65 at East Lake Golf Club.
World No. 1 Rory McIlroy posted a 4-under 68 to end three rounds at 5-under- par 205. He shares fourth place with Bubba Watson (70) and second-round leader Jim Furyk (72), who stumbled to a triple-bogey on the 17th.
McIlroy led the FedExCup points race entering this event, while Snedeker was fifth on the points list. Anyone in the top five on the points list would win the FedExCup with a victory at this event.
Tiger Woods, who is second to McIlroy on the points list, carded a 3-under 67 to move into a share of seventh at 4-under-par 206. He stands alongside Robert Garrigus (69), Matt Kuchar (70) and Bo Van Pelt (71).
While Rose and Furyk were battling for the lead most of the round, Snedeker came four off the pace to join Rose atop the leaderboard.
Snedeker birdied the fifth and seventh to move to minus-4. After a birdie on the par-5 ninth, he came right back with a birdie on No. 10 to get within one of the lead.
The Farmers Insurance Open winner got to 7-under with a birdie on the par-5 15th. He grabbed a share of the lead with a 16-foot birdie effort on the 17th. Snedeker 2-putted for par at the last to share the lead.
"It was probably one of the best rounds I've played this year. I drove it fantastic, hit a lot of quality iron shots, and putted actually okay for me, not great," Snedeker stated. "I left a lot of putts out there. To hit 17, 18 greens, in this wind on the golf course, you're striking your ball pretty good. I'm very excited about the standings going into tomorrow."
Rose parred the first eight holes. He got up and down for birdie on the ninth to move to 7-under, but he was still one behind Furyk, who also birdied No. 9 from close range.
Around the turn, Rose drained a 7-footer for birdie at the 11th to join Furyk in the lead. Rose ran off seven consecutive pars to end there.
"It was very, very tricky out there with that little extra bit of wind really made you work all day long," Rose stated. "To [shoot 68], obviously, in the environment of the Tour Championship, it was a great round for me."
Furyk had just that one birdie through 16 holes. At the 17th, he hit his drive left into a lake. Furyk hit a second tee shot into the right rough, then found sand with his fourth shot. He blasted out, then 2-putted for triple-bogey to slide to minus-5.
McIlroy has two birdies and two bogeys on the front nine. He picked up two more birdies on the back nine to move into a share of fourth.
Woods birdied the fourth, but gave that shot back when he bogeyed the seventh. He converted three birdies between the ninth and 15th to get to 4-under.
NOTES: Snedeker claimed his third tour title earlier this year at Torrey Pines, while Rose earned his fourth PGA Tour victory at Doral ... Snedeker owns a share of the 54-hole lead for the third time in his tour career, however he lost both of the previous two ... Rose has won just two of the previous eight times he owned at least a piece of the 54-hole lead.