Ace helps Kim extend lead after two rounds at Texas Open

South Korea's Si Woo Kim aced the par-3 16th on Friday and holds a four-shot lead after the second round of the Valero Texas Open.

Kim, who led by a stroke after the first round on the par-72 TPC San Antonio course, used a 9-iron on the 167-yard 16th, drawing the ball slightly toward the hole. The ball bounced once, landed next to the cup and dropped in.

That helped him go 4 under on the back nine en route to his second consecutive round of 66 and 12-under 132 through two rounds. His Friday effort included four birdies and no bogeys.

A six-pack of golfers, including Rickie Fowler and former World No. 1 Jordan Spieth, are four back at 8-under 136. Kim's four-stroke lead is the largest after 36 holes on the PGA Tour this season.

Spieth hit a couple of highlight shots on Friday, holing out from 113 yards for eagle on the par-5 8th, which was his second-to-last hole of the day. He said his 56-degree wedge was right on the number for the shot, which he landed beyond the hole and drew back into the cup.

"I just needed to commit to the shot and toss it on line," Spieth told the media after his round. "In the air, it looked pretty good. I thought it would be within 10 feet; a bonus for it to drop."

Spieth also holed out a 70-foot lob shot for birdie on the par-4 11th hole early in his round while shooting 68 for the second consecutive day.

"Slid under the ball really nicely on that chip shot, landed right on my spot, just trickled in," Spieth said per "I was just trying to make 4."

Harold Varner III and Adam Schenk each fired rounds of 66 to get to 8 under. Others tied for second are Monday qualifier Corey Conners of Canada and South Korea's Kyoung-Hoon Lee, who each shot second-round 67s. Fowler's round of 68 included an eagle, five birdies and three bogeys.

Fowler, the top-ranked player in the field at No. 8, eagled the 327-yard par-4 5th hole after putting his tee shot within three feet. He bogeyed the 15th on a three-putt and bogeyed 16 before birdying the par-4 17th and getting up-and-down on 18 for par.

"It was nice," he told the Golf Channel of his round.

"Happy with it. I hit some good shots out there. Made a few putts. On 15 and 16, kind of little unforced errors. Fifteen, I was putting back into the wind and kind of forgot it was back down the hill a decent amount, so I had one get away from me there."

Seven golfers are at 7-under-par: Americans Brian Stuard, Josh Teater, Scott Stallings and Jim Knous, South Korea's Byeong Hun An, South African Rory Sabbatini and Australian Matt Jones.

Defending champion Andrew Landry shot 71-74 for a 1-over total that missed the cut by two strokes.

--Field Level Media