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.

Brooks Kopeka 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.