A strong finish helped Scott Piercy take a two-stroke lead after the 3M Open first round.
Scott Piercy birdied three of the first five holes at Pebble Beach and took the clubhouse lead despite a bogey at the last.
Jon Rahm was among the early starters at the U.S. Open and made third birdies in his opening three holes at Pebble Beach
Eyeing a record-equalling fifth Pebble Beach Pro-Am win, Phil Mickelson will have to return on Monday to see out a victory.
Phil Mickelson, Lucas Glover, Scott Langley, Paul Casey and Jordan Spieth are all 10 under heading into Saturday.
Brooks Koepka dethroned Dustin Johnson atop the world rankings after winning in South Korea on Sunday.
Bidding to become world number one, Brooks Koepka holds a four-shot lead at the The CJ Cup at Nine Bridges.
Rory McIlroy, Jordan Spieth and Jason Day were among those to struggle in a tough U.S. Open round one.
High winds have left few birdie opportunities Thursday at the Masters.