Barbados: Matthew Wade, Mitchell Marsh and Josh Hazlewood were the major contributors in the victory
Having taken Australia into the triangular series final with the bat, Mitchell Marsh ensured a tournament-winning victory over the West Indies by delivering with the ball.
Marsh's emergence as a performer under pressure was a major positive of Australia's otherwise workman-like defeat of West Indies and the already vanquished South Africa, making it fitting that he landed the decisive blows against a doughty home side.
A spell of 3 for 7 featured the wickets of Darren Bravo, Marlon Samuels and Johnson Charles in successive overs, breaking the back of the West Indies chase and leaving too much for their heavy-hitting lower order to do.
Josh Hazlewood followed up with five wickets of his own, the finishing touch arriving with a typically mercurial catch by Glenn Maxwell.
Australia also owed much to the wicketkeeper Matthew Wade, who muscled his way to a half-century with the tail that atoned for earlier wasted starts by the top order, while also reaffirming his place in the team. Wade's late hitting stretched the total to 270 when at one point 240 looked more likely.
Brief scores
Australia - 270 for 9 (Wade 57*)
West Indies - 212 (Hazlewood 5-50, Marsh 3-32)
Result - Australia won by 58 runs