SAN FRANCISCO -- Jason Day took his first step toward a return to the spotlight in the majors Thursday at the PGA Championship.
Brooks Koepka never seems to leave.
Day and Brendon Todd wound up in a share of the lead Thursday after an opening round packed with action, just not cheers. Each posted a 5-under 65 at Harding Park, where fog gave way to the sun, and the wind eased just enough to make the public course accessible to reasonable scoring.
The one constant appears to be Koepka.
Just two weeks after he missed a cut and was so frustrated he said he heaved a club 70 yards during practice, he powered his way to six birdies for a 66 that left him in a large group one shot behind.
"It's only 18 holes right now," Koepka said. "I feel good. I feel confident. I'm excited for the next three days. I think I can definitely play a lot better. Just need to tidy a few things up, and we'll be there come Sunday on the back nine."
Day, trying to emerge from a slump that has kept him from winning since 2018 and contending in majors since 2016, hit an approach to 6 feet for birdie on No. 9, the second-toughest hole on the course at 518 yards for a par 4 at sea level.
Todd's round was equally impressive. Playing in the afternoon, as the wind strengthened, Todd made seven birdies and finished with a 10-foot par putt.
Koepka is the two-time defending champion, presented the opportunity this week to become only the seventh player in the 160-year history of major championship golf to win the same major three years in a row. It was last done 64 years ago.
He's still a little annoyed that he missed a similar chance last year down the Pacific coast at Pebble Beach, when he finished runner-up in his bid for a third straight U.S. Open.
Koepka hasn't won in more than a year. His left knee has been bothering him since last August. No matter. After a slow start, he quickly moved his way up the leaderboard and stayed there with a series of key putts for par -- and one 12-footer for bogey -- that gave him an ideal start to this major.
He was at 66 with eight other players, a list that included former major winners Justin Rose, Martin Kaymer and Zach Johnson, rising star Xander Schauffele and tour rookie Scottie Scheffler.
Tiger Woods ran off three birdies in a four-hole stretch toward the end of his round that offset a few mistakes. He opened with a 68, a solid start for a 15-time major champion who has played only one tournament in the past six months.
Just under one-third of the field -- 47 players -- broke par. That included Bryson DeChambeau, who broke his driver on the seventh hole after another vicious swing. Oddly enough, it finally gave way when he leaned on it ever so slightly while picking up his tee.
He was able to replace it and challenged the lead -- he was 4 under through 10 -- until he slid back to a 68.
Instead of the wind and chill and the thick marine layer, it was pleasant enough to make this feel like a casual round of golf.
It sounded like that, too.
Spectators have not been allowed at any tournament since the PGA Tour returned two months ago. It's not less strange.
"It still funny," Rory McIlroy said. "You know, '99, 2000, 2006, 2007 PGA champion, Tiger Woods. And then there's nothing. That's pretty interesting. That's definitely different."
McIlroy, Woods and Justin Thomas, the No. 1 player in the world, each started with a birdie on No. 10 to no applause. They still had the largest following in two months, some 60 people -- reporters, photographers, camera crews, a few park rangers. And there were fans along the road beyond the fence on the 12th hole shouting for Woods.
McIlroy overcame three straight bogeys early in his round for an even-par 70. Thomas was going along fine until a pair of double bogeys, one on the seventh hole when his ball never came down from a Monterey Cypress tree. He shot 71.
The start was a good sign for Day, a former No. 1 player in the world, because he has struggled so much since his last win two years ago. His back gives him trouble. Off the course, his mother was dealing with lung cancer in Australia. And then he finally made a clean break from his longtime coach and lifetime mentor, Colin Swatton.
But he registered three top-10s coming into the PGA Championship, and his confidence is growing.
Ditto for Koepka. He missed the cut at the 3M Open in Minnesota two weeks ago, went home to Florida and during one range session was so frustrated he heaved a few clubs. But a quick video review and some technical work revealed his weight was on the wrong side. He made the adjustment and tied for second last week at a World Golf Championship.
And this is a major. Big Game Brooks is at his best in these.
"He seems to find his comfort zone in these tournaments, in these environments, for whatever reason that is," McIlroy said. "I think we are all just lucky that he doesn't find it every other week."
The Associated Press contributed to this report.