Harris English opened the HP Byron Nelson Championship with a 6-under-par 33-31=64.
He hit 16 greens in regulation and buried seven birdies, three of which from outside 10 feet at holes 16, 17 and 18. His only hiccup was a bogey-4 at the 13th hole. It's the lowest aggregate for which he's signed after the first round on the PGA TOUR. He's four shots off the clubhouse lead.