Australia's Jason Day held off the challenge of Denmark's Thomas Bjorn and countryman Adam Scott to win the individual prize at the ISPS HANDA World Cup of Golf at Royal Melbourne as the antipodean duo also claimed the team prize.
Day had held a one-shot lead overnight and a fourth-round 70 meant he finished on 10 under, two shots clear of Bjorn who finished with a 71.
Scott closed with a five under par 66 to finish a further shot back and hand Australia an aggregate team score of 17 under, 10 shots clear of nearest challengers the United States.
Ireland’s duo of Graeme McDowell and Shane Lowry finished in 11th spot, with McDowell finishing one over for the tournament and Lowry on eight-over-par.
The home win was a first victory for Day since the HP Byron Nelson Championship in 2010 and the 26-year-old feels it is just reward after finishing second three times at majors since then.
"It was a complete honour to win here at Royal Melbourne," he said.
"To win in front of the Melbourne fans who are so passionate about their sport was an amazing feeling.
"It feels great. I just really don't know what to think right now.
"All the hard work and dedication that I have put into my game over the last five or 10 years is paying off.
"It's taken me a while to get my second win as a pro, and it couldn't be more fitting with Scotty by my side winning the World Cup here in Melbourne."