"I putted unbelievably well, " said Pappas, whose brother Deane is three shots back on 66.
When they resumed, Wood hit onto the seventh green, and Garcia putted before Woods got there.
Overall, McGinley three-putted just once but single-putted 37 times and two-putted four times fewer.
Donald missed a five-foot birdie putt and Howell three-putted from 20ft after lining up an eagle opportunity.
He split the middle, found the green and two-putted for par to join Stenson in the clubhouse lead.
But it was not to be as O'Hair gained redemption despite bogeying the final hole as he three-putted.
Over the four days, Parry singled-putted 26 times and three-putted just once, in his opening 69 on Thursday.
Oberholser had been on target for the feat at the Byron Nelson Championship before he two-putted the 18th.
Garcia punched out short from the trees, chipped it 8 feet past the hole and two-putted for a bogey.
Woods three-putted from long range on the par-3 third and fell back into a tie with Garcia at 10-under.
Olazabal putted solidly too with an average of 29.8 or 119 in total.
He has one-putted 131 holes this season through 17 rounds with an average distance of seven feet, 10 inches.
WSJ: Tiger Woods Should Credit His Return to No. 1 on Improved Putt
He got up-and-down for birdie, and he two-putted for birdie on the 15th.
Everyone was hitting the ball long, it all depended on how you putted.
He duly putted the birdie on Saturday morning before bogeying the 18th to lead America's Tag Ridings by four.
After everyone in a group has putted, one player rakes the green in spiral circles fanning out from the hole.
Day three-putted on 17 and 18 to fall out of the top spot for the first time since late Friday afternoon.
He was able to drop by the green, however, and two-putted for par, and a 12 under par total of 204.
Bradley, 26, and Simpson, 27, started using belly putters when they were in college, simply because they putted better that way.
Scott had won with a long putter the week before, and Webb Simpson followed Bradley with two belly-putted victories in three weeks.
He single-putted no less than 30 times in piling up 24 birdies overall and only three-putted twice, both slip-ups coming over the weekend.
Els' victory over Scott was achieved using the club, while Webb Simpson and Keegan Bradley both belly putted their way to major championships.
"The three events that I've won, I've putted well, " Woods said.
Using a helmet fitted out with an external camera and other peripherals, she was able to precisely track the eye movements of golfers as they putted.
It was just adapting to the weather and the green speed, but I putted beautifully again today and hope to keep it going for the week.
He three-putted the 17th green for bogey and wound up with a 71, putting him at 8-under 208 with David Lynn of England, who had a 68.
He three-putted from about 15 feet for bogey on third, made bogey with a wedge in his hand on the par-5 fifth hole and stumbled to a 76.
The Dane had been three clear after grabbing birdies at five of his first six holes, but four-putted the eighth from 40 feet for a double bogey five.
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