Ogilvy, who earned $1.4 million, also won the event in 2006.
"I don't really know. I really, really enjoy the format," Ogilvy said. "Generally when you enjoy something that you're doing, you do it well. That's all I can put my finger on."
Ogilvy, a six-time winner on the PGA Tour, also triumphed at the season-opening Mercedes-Benz Championship.
The Australian veteran was 3-up after the first half of the 36-hole final and had a 6-up advantage over his English opponent with nine holes to play.
Ogilvy has a record of 17-2 in four appearances in the tournament. In addition to his two victories, he was runner-up to Henrik Stenson in 2007.
"The whole weekend I played fantastic," Ogilvy said. "I have to congratulate Paul for getting into the final. I've been on the wrong end of this final. It's not a very nice feeling, but it's a very satisfying week to play well."
Stewart Cink birdied the final three holes to win the consolation match over Ross Fisher.
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