PGA Tour rookie Garnett leads at Colonial

PGA Tour rookie Brice Garnett leads by stroke halfway through Colonial

Colonial Golf

Chris Stroud watches his tee shot on the eighth hole during the second round of the PGA Colonial golf tournament in Fort Worth, Texas, Friday, May 23, 2014. (AP Photo/LM Otero)

Colonial Golf

Robert Streb watches his tee shot on the first hole during the second round of the PGA Colonial golf tournament in Fort Worth, Texas, Friday, May 23, 2014. (AP Photo/LM Otero)

Colonial Golf

Dustin Johnson watches his tee shot on the second hole during the second round of the PGA Colonial golf tournament in Fort Worth, Texas, Friday, May 23, 2014. (AP Photo/LM Otero)

Colonial Golf

Adam Scott hits out of the sand on the on the seventh hole during the second round of the PGA Colonial golf tournament in Fort Worth, Texas, Friday, May 23, 2014. (AP Photo/LM Otero)

Colonial Golf

Brice Garnett lines up his putt on the 18th hole during the second round of the PGA Colonial golf tournament in Fort Worth, Texas, Friday, May 23, 2014. (AP Photo/LM Otero)

Colonial Golf

Matt Kuchar misses a putt on the seventh hole during the second round of the PGA Colonial golf tournament in Fort Worth, Texas, Friday, May 23, 2014. (AP Photo/LM Otero)

FORT WORTH, Texas (AP) -- PGA Tour rookie Brice Garnett opened with an eagle Friday on his way to a 4-under 66 and the second-round lead at Colonial.

At 7-under 133, Garnett had a one-stroke lead over Robert Streb (68) and Chris Stroud, who made five putts from more than 20 feet in a 64.

Australian Adam Scott, playing as No. 1 in the world for the first time, shot a 68 to get to 1 under. He has made the cut his last 34 U.S. PGA Tour events, the longest active streak.

Matt Kuchar, ranked No. 4 in the world, had a chance to move to the top with a victory, but he missed the cut by a stroke, shooting 72-70.