Tasmania 5 for 229 (McDermott 103, Jewell 64) beat South Australia 9 for 228 (Ross 82*, Lehmann 50, Faulkner 3-28) by five wickets
Ben McDermott struck an unbeaten 103, his fourth one-day hundred, to lead Tasmania to a convincing five-wicket victory against South Australia.
McDermott, the second-highest run-scorer in last season's tournament, and Caleb Jewell added an opening stand of 132 to break the back of the chase after Tasmania's quicks had done early damage. Alex Ross struck an unbeaten 82 to rescue the innings but South Australia could only post 9 for 228.
A flurry of late wickets made the margin look a little closer, but there was no repeat of the dramatic collapse that cost Tasmania victory against Victoria last week.
McDermott reached his hundred off 136 balls shortly before the end having anchored the innings impressively. Matthew Wade made 20 in his first innings of the season before being caught in the deep off Adam Zampa.
The victory was set up by the early inroads with South Australia's big three names at the top of the order dismissed in the first two overs. Callum Ferguson received an excellent delivery from Jackson Bird before Travis Head dragged on against James Faulkner who then nipped one through Alex Carey to leave South Australia 3 for 8.
Jake Lehmann struck a half-century as he and Ross added 65 for the fifth wicket and there was a 50-run stand between Ross and Cam Valente. When South Australia lost their eighth wicket in the 46th over it appeared they could be bowled out, but Kane Richardson helped squeeze out 36 runs alongside Ross.