U.S. Open champion Dustin Johnson doesn't care about the physics behind his new putter. Seeing more putts drop is enough for him.
Johnson made two eagles in a span of seven holes, shot 31 on the back nine and set the course record at Crooked Stick on Friday with a 9-under 63 that gave him a share of the lead with Roberto Castro in the BMW Championship.
Johnson didn't even know he set the course record until Tony Pancake, the golf director at Crooked Stick, congratulated him on the way to the clubhouse.
"I guess no one was ever better than 63," Johnson said with a shrug and a smile.
Castro was the first player to reach 14-under 130 on the rain-softened...