Weekley shot a 6-under 65 to reach 15 under and move three strokes ahead of Anthony Kim (67) and five in front of Aaron Baddeley (67), Jason Bohn (67) and Cliff Kresge (68). Second-round leader Lucas Glover shot a 73 to drop seven shots back.
Weekley chipped in on the 71st and 72nd holes a year ago to beat Ernie Els for his first PGA TOUR victory. The good-natured, self-proclaimed country boy from the Florida Panhandle hasnt slowed down in his return.
No ones had a better start than Weekley at Pete Dyes menacing masterpiece of tight fairways, smallish greens and railroad ties.
Weekleys got a sting of seven straight rounds in the 60s. That tied Greg Norman for second all-time at Harbour Town behind Nick Prices nine in a row.
Those major champions had made several Harbour Town starts before their streaks began. Weekley hadnt teed it up here until last year.
Weekley started the day a stroke behind Glover. Weekley fell two back after finding the sand on the par-5 second hole and settling for par while Glover made birdie.
Then Weekleys run began with'what else?'a chip in on the par-3 fourth.
A two-putt birdie on the par-5 fifth followed. Weekley stuck his approach on the next hole to 7 feet for a third straight birdie and a tie with Glover.
Weekley moved in front on the seventh with a 10-foot birdie putt.
When Weekley rolled home a 20-footer on the eighth, he was two shots in front.
Weekley pumped his fist and pointed as the fans chanted Boooo! Boooo!
The streak ended on the ninth when Weekley saved par out of the sand.
He stretched his lead to three shots with a birdie on the 12th hole.
Weekleys lone boo-boo came four holes later, his approach to No. 16 skidding off the green and near the 17th tee to lead to bogey. He made it back on the closing, lighthouse hole, rolling in a 6-footer for a three-shot edge.
Kim, a second-year pro seeking his first PGA TOUR win, was the only one who kept pace with Weekley. Starting two shots off the lead, Kim made eagle on the second and stayed close with two birdies on the front.
The 22-year-old nearly saw it fall apart, dunking his tee shot on the 10th hole into the water. But he chipped in to save par.
Kim also saved par from off the green on the 18th to remain two shots behind.
Does anyone have chance of halting Weekleys run?
Its going to depend on him, really, said Baddeley, the 2006 Verizon Heritage winner.
Weekley swore a year ago as he sat with the champions plaid jacket he wouldnt change because of success. He was true to his word.
Weekley charmed the galleries again with his folksy, good ol golfer outlook.
He teed it up with his mother, Patsy, in Wednesdays pro-am, then got angry, he says, when she outdrove him on the first hole.
He took time during the second round to smooth a bunker on the 16th hole. I aint too good to rake a bunker, Weekley said simply.
When asked where his garish checked winners coat was, he smiled and said it was packed up in his mamas car after he wore it to march around the lagoon, Weekleys description of the tournaments opening ceremonies.
He chewed tobacco during his round. As he approached the 18th tee, Weekley told a little girl who wanted a golf ball, Let me hit it and Ill bring one back.
Weekley delivered on his promise, as he has the past two years at Harbour Town.
Jim Furyk, at No. 9 in the world the highest ranked golfer left here, shot a 68 and was five shots behind at 9-under. Five-time Verizon Heritage winner Davis Love III shot a 69, his 43rd career sub-70 round. He first played here in 1986. Of the 37 golfers who played the Masters last week and then came here, 26 made the cut.