Jason Dufner fired a seven-under-par 65 to grab the outright lead after the second round of the CareerBuilder Challenge in La Quinta, California on Friday. Dufner, a three-times winner on the Tour, began the day in a four-way tie at the top but came out firing in round two, showing flashes of the form that won him his only major, the 2013 PGA Championship. Rolling the ball beautifully on the greens, Dufner began with a pair of birdies, bagged another at the fifth, and closed his opening nine with a run of three straight to reach the turn at six-under 30. More...