Emerging paceman Shaun Tait guided the inexperienced South Australian team -- which included four debutants -- to a comfortable victory with total match figures of 9-73 as Victoria fell well short of their victory target of 321.
The win earned South Australia the David Hookes Memorial Trophy, established this year as a tribute to the former Australian Test batsman, South Australian captain and finally Victorian coach who died after a scuffle outside a Melbourne hotel.
Tait's performance of 5-39 and 4-34 earned him man-of-the-match honours and South Australian captain Graham Manou tipped the fast bowler to earn a call-up into the Australian team before much longer.
"Something always happens when he's got the ball in his hand, but I'm not sure for how much longer I'll be able to throw him the ball to be honest," Manou said.
"If he keeps going like he is, they can't ignore him."
Chasing 321 to win, Victoria resumed on Tuesday at 1-7 but a spirited run chase never emerged, with South Australia picking up two quick wickets to have them in deep trouble early at 3-17.
Only captain Jonathon Moss offered any serious resistance, scoring 50.
In Perth a five-wicket haul to spinner Brad Hogg had Western Australia on the verge of an innings victory over Tasmania after day three of their match at the West Australian Cricket Association ground.
Hogg claimed 5-29, his best figures for Western Australia, including three wickets in one over as Tasmania slumped to 159-8 at stumps in their second innings.
Tasmania were still 61 runs behind Western Australia's first innings of 478-9 declared with one day remaining.
Australian Test paceman Brad Williams suffered a suspected ligament injury to his right knee while bowling for Western Australia and he will have further tests on Wednesday.