MANILA, Philippines – Banishing the ghosts of a year-long slump, Harmie Constantino re-established herself as the undisputed force of the Ladies Philippine Golf Tour, turning the final round of the ICTSI Caliraya Springs Championship into a masterclass of composure as she braved erratic weather to secure a whopping six-stroke, wire-to-wire victory over Mafy Singson with a closing 68 in Cavinti, Laguna on Thursday.