Independent MP Geoff Brock looks set to return to his Ellen Centre office for another four years after polls showed an increase to his first preference vote.
Brock polled ahead of his main contender, the Liberal Party's Kendall Jackson, in all Port Pirie booths as well as Gladstone, Laura and Crystal Brook and several others throughout the count on Saturday night.
Even in the blue-ribbon town of Clare, the two-party preferred vote was split 60-40 to Jackson and Brock.
Mrs Jackson conceded defeat when speaking to Fairfax Media on Sunday.
Mr Brock told Fairfax Media he was far more relaxed on Saturday evening than he was earlier in the day.
Throughout the weekend, the media spotlight was planted firmly on the independent candidate.
On Saturday night, up to 60 people gathered at his Port Pirie home to support his campaign.
He maintained a high presence throughout election day, visiting 25 of the 29 polling booths and travelling 500-kilometres.
When asked what he would do if he was re-elected and there was a hung parliament, Brock said he would talk to both major parties and see what they could offer his electorate, Frome, and regional South Australia.
The former Port Pirie Regional Council mayor was first elected in 2009 at a by-election to replace Liberal MP and former Premier Rob Kerin.
After preferences were distributed, Brock just scraped in, polling ahead of Labor, shocking both major parties.
At the by-election, then Opposition Leader Martin Hamilton-Smith claimed victory for the Liberals while both Labor and Geoff Brock conceded defeat.
Come 2010, it was a different scenario with Brock polling ahead of Labor and Liberals on first preference votes.
He also saw his stronghold on the seat significantly increase.