Ian Poulter still had something to prove this year even after sparking Europe's improbable come-from-behind Ryder Cup victory.
He wanted to take home a stroke-play title-badly.
And Poulter got his wish Sunday after he shot a 7-under 65 to rally from four strokes back to win the HSBC Champions at Mission Hills by two shots.
It was the Englishman's second World Golf Championship victory - he also captured the Accenture Match Play Championship in 2010 - and his first title of any kind since the Volvo World Match Play Championship in May 2011.
Phil Mickelson (68), Jason Dufner (64), Scott Piercy (65) and Ernie Els (67) finished in a tie for second at 19-under 269.
Lee Westwood and Louis Oosthuizen, the co-leaders overnight, slumped to equal sixth after struggling on the greens and posting identical scores of 72.
Poulter was the star of the European squad at the Ryder Cup this year, making five straight birdies alongside Rory McIlroy to rally the pair past Dufner and Zach Johnson a...