THIRD ROUND LEADERBOARD:
Woods is hunting his seventh PGA Tour title of the season
(US unless stated)
-19 T Woods
-16 M Calcavecchia
-14 S Garcia (Sp)
-13 Z Johnson
-10 P Harrington (Ire), V Singh (Fij)
World number one Tiger Woods fired a six-under 64 to remain three shots clear of the field going into the final round of the Tour Championship.
Woods, who is chasing his fourth win in five starts, is on 19 under at the East Lake Golf Club in Atlanta with Mark Calcavecchia lying in second.
Calcavecchia fired a 63 to keep the pressure on Woods and briefly tied for the lead with an eagle on the 15th.
Sergio Garcia is two shots further back while Padraig Harrington is 10 under.
Harrington made a slow start to disappear from the leaderboard, before improving on the back nine to end the day nine shots back after carding a 67.
I prefer golf courses where if you shoot something in the 60s, you've earned it
Woods had birdies at the third and the fourth but a bogey five at the seventh checked his momentum.
But he quickly rallied and five more birdies in his closing 10 holes put him in charge again.
"If you made a bunch of pars you were going to get run over, so it was nice to make some birdies and maintain the same sized lead I had starting out the day," he said.
"I can't remember too many golf courses that have been easier than this one. I prefer golf courses where if you shoot something in the 60s, you've earned it and you are going to move up the board."
Justin Rose, the only British player in the 30-man field, had a decent 66 and sits on four under.
"I probably made a few more putts," he said. "Being second group out, the greens rolled a little better.
"I have been driving the ball well all week. I just haven't hit an iron shot at the flag. That's probably the reason I haven't been able to make that many birdies. Today, I still didn't hit my irons well."