Dustin Johnson takes halfway lead at HSBC International in Shanghai . Shoots a record equaling 63 at The International . First round leader Rory McIlroy moves back into contention for second . ` I really drove the ball well , '' Johnson told the official PGA Tour website . ` British Open leader Phil Mickelson seven strokes adrift .
Dustin Johnson takes halfway lead at HSBC International in Shanghai . Shoots a record equaling 63 at The International . First round leader Rory McIlroy moves back into contention for second . British Open leader Phil Mickelson seven strokes adrift .