A Jake Weatherald century, a devastating middle-order blitz and a commanding bowling performance has helped South Australia secure a dominant 176-run win over Victoria and a place in the JLT One-Day Cup elimination final.
Weatherald struck his second ton of the tournament to set up the Redbacks innings while seamer Daniel Worrall claimed his maiden List A five-wicket haul to thoroughly dismantle the Bushrangers at Hobart's Blundstone Arena.
The result sees South Australia progress to Saturday's final against top-placed Western Australia at the same venue.
After being sent in to bat in Thursday's clash, the Redbacks reached 5-339 at from a rain-reduced 48-over innings, smashing 117 off the final 48 balls of their innings.
Weatherald, who was dropped early, went on to score 116 off 121 balls and share a 215-run partnership with Ashes hopeful Alex Carey for the first wicket.
Carey fell agonisingly short of a maiden one-day ton, edging paceman Scott Boland behind for 92.
Cooper then smashed a half century off 22 balls - the equal third-fastest in domestic one-day history - before holing out for 59.
Victoria had no answers at the death as Travis Head (29 off 16 balls) and Alex Ross (18 off 6) pitched in with powerful cameos.
Boland was the only Victorian bowler to go at less than a run a ball, with 1-51 off 10 overs.
Under the Duckworth-Lewis-Stern method, Victoria needed 345 off their 48 overs but were never in the hunt.
The Redbacks removed big guns Aaron Finch and Glenn Maxwell cheaply, both of whom were returning from Australia's limited-overs tour of India.
Finch was bowled for a first-ball duck in Worrall's eventful first over, which begun with a staggering wide off the opening delivery of the innings.
Maxwell fell lbw sweeping to Adam Zampa for 12 as Victoria collapsed to 5-85.
Worrall returned to run through the tail and finish with career-best figures of 5-62.
Earlier, Victoria won the toss and opted to bowl first as they welcomed back a raft of international talent.
The Redbacks also welcomed back Head, Kane Richardson and Adam Zampa into their XI from international duty, having also been in India on Australia's limited-overs tour.
South Australia made the tough choice to drop Jake Lehmann for Head's return, with the son of Australia coach Darren Lehmann scoring 179 runs at 35 in the tournament.