Just six days after being unable to hold Patrick Reed at Bay at Kapalua Walker won his 4th PGA Tour title by a massive nine shots, moving him to 12th on the World Ranking and, just as he had done last year, to a lead on the FedEx Cup points table.
Walker set up the victory with a stunning third round of 62 and when he followed up with today's round of 63 nobody could touch him.
The 36 year old has come of age over the past two years after an earlier career which had indicated he was as good as he is now proving.
In 2004 Walker set a money winning record on the then Nationwide Tour but in 2005 he struggled with injury on the PGA Tour playing only nine events following a neck injury.
Ironically, the injury happened at the Sony Open and threatened to jeopardise his career but now this event has been the making of him to a large extent. It took him until 2009 to have full status on the PGA Tour once again but he is making up for lost time.
Scott Piercy emerged from the pack to finish alone in 2nd position while Matt Kuchar, Harris English and Gary Woodland tied for 3rd.
Jason Day and Stuart Appleby tied as the leading Australians in 17th position with Marc Leishman and Steve Bowditch 37th and Matt Jones 70th.
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