(Reuters) - World number two Jordan Spieth was one stroke behind halfway leaders Webb Simpson and Martin Piller after the second round on the Colonial tournament in Fort Worth, Texas on Saturday.Overnight leader Bryce Molder, among half the field who returned to Colonial Country Club at the crack of dawn to complete the weather-delayed round, took a while to rub the sleep from his eyes.
He recorded two bogeys in three holes to card 69 and join Spieth and two other Americans, Ryan Palmer and Kyle Reifers at seven-under-par 133.