A masterful hundred from Tasmanian captain Keegan Oates ensured his charges remain unbeaten to start the under-19 national championships in Adelaide.
The Tigers were five wickets better than Western Australia at Woodville Oval on Tuesday, backing up their opening round triumph over Cricket Australia XI.
Tasmania used nine bowlers in dismissing WA with a run out off the final ball of the innings for 241.
Opener Blake Cassidy was the only multiple wicket-taker with 2-35 off eight, while Jack Freeman, Jarrod Freeman, Lachie Newland, James Curran, Connor O'Brien, Kade Applebee and Oates picked up one apiece.
WA was 4-80 before a 65-run partnership between skipper Damien Burrage (36) and Connor Smith, and several 30-plus run stands in the latter stages saw them post a competitive total.
Smith was the star with 88 off 91 balls, including eight fours and one maximum.
In reply, Tasmania was in a precarious position at 2-16 with openers Lewis Drury (1) and O'Brien (4) falling cheaply courtesy of James Pike.
However, the mighty combination of Oates and Jake Williams put on 132 for the third wicket.
Williams departed one short of his half century, leaving Oates to go on to rack up a ton and Jack McCulloch to hit a quickfire 24 in a 52-run stand between the pair.
Jarrod Freeman was required with six overs to go and whacked 23 off 12 deliveries before Oates (124 not out) and Applebee (6 not out) finished the chase off in the 49th over.
Pike (2-18) and Burrage (2-50) were WA’s most successful bowlers.
Tasmania next takes on Victoria Metro at Port Adelaide Reserve on Thursday, from 10.30am.