HILTON HEAD ISLAND, S.C. (AP) _ Bryson DeChambeau shot a career-best 7-under 64 on Friday to take a one-shot into the weekend at the RBC Heritage Classic. 

DeChambeau's first event as a pro was at Harbour Town Golf Links in 2016. Two years later, he posted his lowest ever on the PGA Tour to get to 10-under 132, one ahead of red-hot Ian Poulter and Si Woo Kim. 

Poulter showed he's not done playing high-level golf with a bogey-free 64. Kim, The Players Championship winner, had a 65 that included a two-shot penalty for touching sand after a bunker shot. 

Two shots behind DeChambeau were Chasson Hadley (68), past RBC Heritage winner Brandt Snedeker (64), Luke List (64) and first-round leader Rory Sabbatini (70). 

World No. 1 Dustin Johnson shot a second straight 69 and was tied for 25th, six shots off the lead.