Sport Kokrak tops Texas leaderboard

Jason Kokrak fired a round-of-the-day 62 to open up a commanding five-shot lead after the second round of the AT&T Byron Nelson.

Kokrak, without a top-10 finish all season on the PGA Tour, posted eight birdies in a blemish-free display at TPC Four Seasons to pull clear of the chasing pack.

Billy Horschel is Kokrak's nearest challenger on seven under after finishing his round with three consecutive birdies, with world No 1 Dustin Johnson in the group a further stroke off the pace.

Steady start for DJ in Texas

Dustin Johnson posted an opening-round 67 to lie three strokes off the early lead at the AT&T Byron Nelson in Texas.James Hahn and Ricky Barnes share the lead after the opening round of the AT&T Byron Nelson, where world No 1 Dustin Johnson also made a solid start.

Back to Leaderboard . Tier: All Royalty Diamond Platinum Gold Silver Bronze. Top 10 Finish Rate. K/M. #Position. Name. Tier. Top 10 Total Score.

Jason Kokrak . United States. Swings: R. Valero Texas Open TPC San Antonio - AT&T Oaks. 67. Luke Donald climbed atop the leaderboard Saturday at the RBC Heritage, but Jason Day fell from co- leader to nine shots back after shooting a season-worst 79.

Jason Day birdied three of his final five holes to move inside the top 20, while Texas native Jordan Spieth missed cut after carding an ugly quadruple-bogey late in his round.

Beginning the day two strokes off the pace, Kokrak birdied the first and rolled in from 15 feet at the third to move into a share of the advantage.

The world No 128 posted a two-putt birdie at the seventh and picked up a shot at the ninth to reach the turn in 31, before pulling clear of the chasing back with back-to-back gains from the 12th.

Horschel briefly moved within three of the lead after his treble birdie finish, only for Kokrak to leave himself a tap-in at the 16th and post a seven-foot gain at the next.

The American then missed the final fairway and pitched from the rough back on to the fairway, before getting up-and-down to maintain his bogey-free day.

Overnight joint-leader James Hahn temporarily got to seven under after following a gain at the sixth with an eagle-three at the next, only to bogey his penultimate hole to join the group on six under.

Cameron Tringale, Bud Cauley, Jhonattan Vegas and Byeong Hun An join Hahn in a share of third, with Johnson also six off the pace following a final-hole blemish.

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