American DA Points claimed the first-round lead at the Houston Open on Thursday with a strong eight-under 64 in Texas. Points sprung to life from his first tee shooting five birdies from as many holes to begin well after starting on the 10th. He then made another birdie on 17 courtesy of a 54-foot putt his longest successful stroke with his putter since a 68-footer at the AT&T National in 2011. Points dropped a shot on the par-four fifth, but then went par-birdie-birdie-par to finish off a brilliant day. More Americans are Points&apos immediate threats to the lead through 18 holes, with Cameron Tringale and John Rollins a shot back at seven under. Tringale went bogey-free and shot all of his seven birdies in the space of 11 holes, while Rollins also failed to drop a shot and stormed home with four back-nine birdies. Another American Jason Kokrak is level with Argentine Angel Cabrera on six under, while England&aposs Brian Davis is tied for sixth with locals Jeff Overton and Steve Wheatcroft on five under. Australia&aposs Matt Jones finished the day in the top 10 on four under tied for ninth alongside English pair Lee Westwood and Greg Owen and Americans Billy Horschel, John Merrick, Bud Cauley, Jimmy Walker, Charley Hoffman and Bill Haas. Phil Mickelson is even par, while Rory McIlroy the world number two shot a one-over 73 to be tied for 88th.