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Pat Perez began the final round only one shot back.

He started the final round with a birdie to briefly take the lead, but the rest of the round hasn't gone Pat Perez's way.

Perez just double-bogeyed the par-5 seventh hole after drilling his tee shot in the water. It's his first double bogey of the week, and it dropped him to 11 under, four back of Jonathan Byrd, who has opened up a four-shot lead.

PAT PEREZ: Scorecard | Shot Tracker