But the manner of how it was accomplished certainly was.
Spieth has enjoyed pole position since opening with a superb 63 at TPC River Highlands, but he looked in danger of relinquishing his lead when he bogeyed the 13th and 14th while Weekley produced a brilliant back-nine 30 to set the clubhouse target at 11 under. This time they each pushed their tee shots left, with Spieth being the worse off of the two after hitting a tree and leaving himself 225 yards to the green.
According to Weekley it was overcoming a "personal problem back home" that he brought up and then refused to explain except to say whatever was bothering him was, until this week, also bothering his game.
Boo Weekley was second after a 65.
The 43-year-old Weekley also closed the round with a flourish, making birdies at five of the last eight holes, including the final two. In five previous appearances at Travelers, Weekley's best finish is a tie for 14th.
Lee Janzen, who birdied the par-4 14th and 15th and eagled 16, was tied at second with Scott Verplank after each shot 66. Needing a birdie to win on the 18th, Spieth missed the green on his approach but saved par from the bunker. "To be sitting here feels like it's an honor, at the same time as I'm playing well".
Defending champion Kirk Triplett shot a 73 to drop into a tie for 41st at 2 under.
An even par round of 70 saw Rory McIlroy remain at level par overall and well down the pecking order after only making the cut yesterday by a single shot.
The large crowds followed Spieth's every shot.
Thompson started out strong, with five birdies on the front nine. Daniel Berger was in third at 9-under. Then he took the rake with him to the clubhouse.
"The putter kind of let me down a little through the round but Michael (Greller, Spieth's caddie) kept me in it when I was losing it out there".
"Really it was just staying patient", Reed said.
He hit his first shot on 15 in the bunker, but put the ball eight inches to the hole on his second stroke. "It's fantastic what one shot can do (to get) you out of trouble", Spieth said.
However, while the Northern Irishman eventually advanced to the weekend without a stroke to spare, another former world No. 1, Jason Day, headed home early after signing for the wrong score.