After opting to bat first, Bangladesh's fragile batting line-up endured another miserable outing, managing just 109 for 8 from their 20 overs. Captain Towhid Hridoy stood alone amid the collapse, scoring an unbeaten 61 off 51 deliveries to prevent the hosts from posting an even lower total.
The innings began disastrously for Bangladesh. Tanzid Hasan was run out for five before Spencer Johnson removed Saif Hassan and Parvez Hossain Emon to leave the hosts reeling at 11 for 3 inside five overs.
Nurul Hasan, Shamim Hossain and Nasum Ahmed all fell cheaply as wickets continued to tumble. Rishad Hossain briefly offered support with a 14-ball 16, but Hridoy remained the lone source of resistance. The skipper struck three fours and three sixes in his fighting knock, while the next highest score was Rishad's 16.
Australia's bowlers shared the spoils, with Johnson returning remarkable figures of 2 for 6 from four overs. Nathan Ellis also claimed two wickets, while Adam Zampa and Nikhil Chaudhary chipped in with two and one respectively.
Chasing a modest target of 110, Australia never looked troubled. Captain Mitchell Marsh launched a brutal assault on the Bangladesh attack, smashing 60 off just 28 balls, including seven fours and four sixes.
Marsh and Josh Inglis added 54 runs for the opening wicket before Nasum dismissed Inglis for 17. Cooper Connolly contributed 15 from 13 deliveries, but the outcome was never in doubt as Australia raced to 112 for 3 in just 11 overs.
Shoriful Islam, Nasum and Rishad Hossain picked up a wicket each for Bangladesh, but the hosts had far too few runs to defend.
After suffering a 2-1 defeat in the ODI series, Australia responded emphatically in the shortest format, sealing a comprehensive T20I sweep. For Bangladesh, the series exposed familiar batting frailties, with Hridoy's lone resistance offering one of the few positives from a disappointing campaign.
