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Bill Haas

Jason Dufner shoots 65 to take CareerBuilder Challenge lead

Jason Dufner knows his way around PGA West's TPC Stadium Course and the adjacent Nicklaus Tournament Course. He learned out of necessity at the 2008 PGA Tour qualifying tournament.

"I probably played each four or five times before that Q-school started," Dufner said. "I played unbelievable. I think I shot 24 or 25 under for the six rounds. And to be honest with you, this is kind of where everything started for me, because then in 2009 I had a really nice season. That's kind of when I started playing some good golf."

He thought back to that experience Friday in the CareerBuilder Challenge when he shot a 7-under 65 on the Stadium Course to take a one-stroke...