Tour ChampionshipSeptember 23, 2016

Tour Championship: Dustin Johnson leads by 1

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ATLANTA, GA - SEPTEMBER 23: Dustin Johnson watches his tee shot on the 16th hole during the second round of the TOUR Championship at East Lake Golf Club on September 23, 2016 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)

Dustin Johnson continued his assault on a difficult East Lake course in Atlanta, shooting a three-under par 67 on Friday to take a one-shot lead through 36 holes of the Tour Championship.

Johnson, the co-leader with Hideki Matsuyama and Kevin Chappell after the first round, made fives birdies, including the only birdie of the day at the par-4 16th hole. Johnson is seeking his second straight victory and fourth of this a breakout season that included a U.S. Open victory.

“I felt like I played really, really solid today and just didn’t really get a lot out of it,” Johnson said. “I had some close looks that I didn’t make. Still, obviously, three-under is a great score around here. I’ve never going to be upset with that.”

Johnson stands at seven-under par 133, one ahead of Chappell and four ahead of those in third place, Kevin Kisner and Matsuyama. Chappell posted a two-under par 68.

Rory McIlroy, Paul Casey and Ryan Moore are tied for fifth, five back of Johnson, while Jordan Spieth shot a two-over par 72 to fall into a tie for 11th, seven shots behind.