Australia triumphed against a hapless West Indies by 8 wickets in the group 1 encounter in Abu Dhabi.
The kangaroos chased down the target of 158 with the help of brilliant knocks from David Warner 89(56) and Mitch Marsh 53(32).
Earlier in the day, West Indies could only muster 157 with captain Kieron Pollard top-scoring with 44(31).
This may be the last game in West Indian colours for both Dwayne Bravo and Chris Gayle.
The Aussies continued the same team going in with seven batsmen and four frontline bowlers. The West Indies brought in Hayden Walsh for Ravi Rampaul, who had a disappointing World Cup.
West Indies (Playing XI): Chris Gayle, Evin Lewis, Nicholas Pooran(w), Roston Chase, Shimron Hetmyer, Kieron Pollard(c), Andre Russell, Jason Holder, Dwayne Bravo, Hayden Walsh, Akeal Hosein
Australia (Playing XI): David Warner, Aaron Finch(c), Mitchell Marsh, Glenn Maxwell, Steven Smith, Marcus Stoinis, Matthew Wade(w), Pat Cummins, Mitchell Starc, Adam Zampa, Josh Hazlewood
Warner and Marsh shine for Australia
With a tricky target of 157 against a decent West Indies bowling attack, Australia started well. They raced to 33 from their first three overs with Warner taking apart Jason Holder for 15 runs. West Indies experimented with two spinners opening the bowling and they got their reward with Akeal Hosein dismissing Aaron Finch in the 4th over.
But Warner continued in the same fashion and with the arrival of Marsh, Australia cruised to victory. Warner hit a six and a four off Akeal Hosein to get 12 runs in the 8th over. Runs continued to flow as Marsh took 16 runs off Andre Russell.
Australia scored 60 runs from overs 6-12. The Aussies completed the victory with 22 balls to spare and losing just 2 wickets.
A brilliant gesture from Chris Gayle
Perhaps playing in his last match for the West Indies, Chris Gayle took a wicket off his final ball. He dismissed Mitch Marsh and celebrated like only he can by jumping on the back of the Australian to say thank you.
West Indian batsmen struggle again in the UAE
Earlier in the day, West Indies got off to a great start. Evan Lewis scored three boundaries and Gayle hit a six off Hazlewood to get 20 runs in the 2nd over. Pat Cummins got the much-required breakthrough dismissing the dangerous looking Chris Gayle.
Josh Hazlewood made a good comeback after going for 20 runs in his first over, dismissing Nicholas Pooran and Roston Chase to derail the West Indies. They scored 50 runs for the loss of 3 wickets during the powerplay.
Wickets fell at regular intervals as Adam Zampa got rid of Evan Lewis and Hazlewood bounced out Hetmeyer. Kieron Pollard and Andre Russell provided the impetus needed to the West Indian innings scoring a quick-fire 44(31) and 18(7) respectively to ensure they crossed 150.
With their fourth win in five games, Australia has booked their spot in the semi-finals and will likely face Pakistan. It was a disappointing campaign for the West Indies who could only muster one win in their five games.