Jordan Phil Mickelson wins 2015 US Masters after finishing 18-under at Augusta . Phil Mickelson became the first man ever to reach 19 under par in the Masters . Justin Rose and Spieth ( both 14 under ) finished joint second . READ : Phil Mickelson has world at his feet after record-breaking Masters triumph . Phil Mickelson : Winning the Masters has been the most incredible week of my life .
Jordan Spieth wins 2015 US Masters after finishing 18-under at Augusta . Spieth became the first man ever to reach 19 under par in the Masters . Justin Rose and Phil Mickelson ( both 14 under ) finished joint second . READ : Spieth has world at his feet after record-breaking Masters triumph . Spieth : Winning the Masters has been the most incredible week of my life .