– The biggest star at The Players Championship was not Rory McIlroy or Jordan Spieth playing together in the morning. And it wasn't Phil Mickelson and Tiger Woods in back-to-back groups in the afternoon.

It was the TPC Sawgrass all day long in another round of big numbers, curious shots and endless entertainment.

Charley Hoffman was among four players tied for the lead at 5-under 67. He was thrilled with his eight birdies, the most of anyone Thursday. What turned a great day into a good one was that triple bogey out of nowhere right after he made the turn.

How does one make a 7 on the usually harmless first hole?

"Pardon my French," Hoffman began, before using a familiar English word not fit for print to describe all seven of his bad shots. In fairness, the seventh shot was good. He made a 4-foot putt to keep it from being an 8.

David Hearn of Canada, Hideki Matsuyama of Japan and Kevin Na also had 67. Each made only one bogey. It was boring, which never hurts around here.

McIlroy also had a boring round by his standards — two birdies, an eagle, one bogey for a 69. It's a rare occasion when he will call that a good day.

"I think that's what this course is all about," McIlroy said. "It's about staying patient. There's a lot of pars on my card, but I was able to pick off a couple of birdies and a nice eagle on 16. I'm happy with the start, for sure."

Spieth wasn't so fortunate. He was 40 yards away from the green at the par-5 11th and used a wedge three times to get on the green. That doesn't explain the horrible lie he had in the grass, followed by the lie in the sand just below the lip of the bunker. He shot a 75, matching his worst score of the year.

"Just a really, really poor day," Spieth said.

Woods hit a tee shot on a par 3 that went into the water, which is not unusual, but it wasn't on the island-green 17th hole. It was at No. 8, with a clunker that found a creek some 40 yards short of the green. Woods didn't even know there was water on that hole.

"I've never seen it," he said after a 73.

At least one player made a 7 or worse on 10 of the holes on the Stadium Course. Brooks Koepka made a 7 on the 17th by hitting two balls into the water. Then he made an 8 on the next hole by hitting only one ball in the water. He played the other 16 holes in 1 under.

The Stadium Course at the TPC Sawgrass holds a certain mystique after more than three decades. Even in reasonable conditions — warmth, sunshine and a little wind — no one fared better than a 67.

Big numbers can be found anywhere, though. Hoffman didn't see his coming.

"Obviously, you don't ever want to take a triple, double, quad, whatever it is," Hoffman said. "But at least I gave myself time to get them back. It's better than doing it on the 72nd hole, I can guarantee you that."