Round 2 at 2012 Crowne Plaza Invitational

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Jason Dufner, who has won twice in the last four weeks, has the lead again after a bogey-free 64 on Friday.

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Rickie Fowler made four birdies and two bogeys for a two-under 68.

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Zach Johnson is two shots off the lead after a three-under 67.

4 of 6 Tony Gutierrez/AP

Matt Kuchar made four birdies, a bogey and a double bogey for a 69.

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Harris English was moving toward the lead until back-to-back bogeys on Nos. 12 and 13.

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Ryo Ishikawa missed the cut after rounds of 74-70.