Ryo Hisatsune surged to the top of the leaderboard Thursday at the AT&T Pebble Beach Pro-Am, firing a sensational 10-under 62 at Pebble Beach in near-perfect coastal conditions.

Fresh off a runner-up finish at Torrey Pines that secured his place in the Signature Event field, Hisatsune wasted little time capitalizing. He opened with three straight birdies and added another late three-birdie run, highlighted by the day’s only birdie at the notoriously difficult par-4 ninth.

Keegan Bradley and Sam Burns sit one shot back at 9-under. Bradley’s bogey-free 63 came at Spyglass Hill, where scoring proved roughly a shot and a half tougher than Pebble.

“It’s about as nice of a day as I’ve ever seen out here,” Bradley said after a chip-in at the eighth sparked a birdie-eagle-birdie stretch. “The greens are soft, but that makes them a little bumpy too.”

Chris Gotterup continued his torrid form with an 8-under 64, extending his birdie streak to nine consecutive holes across two rounds and two courses. Coming off his playoff win at the Phoenix Open, Gotterup opened Thursday with six straight birdies.

Tony Finau and Patrick Rodgers also posted 64s at Spyglass, while former Pebble Beach champions Nick Taylor and Tom Hoge carded 65s. Jordan Spieth holed a full wedge for eagle on his way to a 6-under 66.

Defending champion Rory McIlroy endured a bumpy start to his 2026 season, making three-putt double bogeys on both par-5s at Spyglass before settling for a 2-under 68.

World No. 1 Scottie Scheffler experienced an uncharacteristically difficult round. A mud ball at the par-5 second sent his approach far offline, setting the tone for a day where scoring chances were scarce. Scheffler managed just one birdie through Pebble’s opening seven holes and needed a closing birdie at 18 to salvage an even-par 72.

“I felt like I didn’t score at all,” Scheffler said. “I actually feel like I’m playing pretty well — just one of those days.”

With calm conditions turning Pebble Beach into a scoring venue, 144 players finished under par Thursday. Forecasts, however, suggest tougher weather could arrive as the weekend approaches.