ADELAIDE MARGIN 4% SITTING MEMBER: KATE ELLIS (LABOR) MAIN RIVALS: DAVID COLOVIC (LIBERAL) JOE HILL (NXT) At the start of the campaign, high-profile former Labor minister Kate Ellis was considered almost a shoo-in to retain Adelaide. But leaked Labor polling shows lawyer David Colovic has a chance of snatching the seat for the Liberals.
GREY MARGIN 13.6% SITTING MEMBER: ROWAN RAMSEY (LIBERAL) MAIN RIVALS: SCOTT MARTIN (LABOR) ANDREA BROADFOOT (NXT) The closure of the power station in Port   Augusta and the crisis at Whyalla steel company Arrium has ensured the "X factor" will have an impact in this sprawling, traditional Liberal electorate. Despite the challenge from NXT, Rowan Ramsey is likely to be re-elected. 
KINGSTON MARGIN 9.8% SITTING MEMBER: AMANDA RISHWORTH (LABOR) MAIN RIVALS: KELVIN BINNS (LIBERAL) DAMIAN CAREY (NXT) Kingston has regularly switched party alleigance over the past 50 years but Labor is confident aout holding on this time. Opposition frontbencher Amanda Rishworth campaigns continuously in her own seat in between elections and she is likely to be rewarded for her efforts.
PORT ADELAIDE MARGIN 14.1% SITTING MEMBER: MARK BUTLER (LABOR) MAIN RIVALS: EMMA JANE FLOWERDEW (LIBERAL) MICHAEL SLATTERY (NXT) There have been whispers about Labor National President and former minister Mark Butler being at risk from NXT. But the NXT vote is unlikely to be high enough in this traditional Labor stronghold to give Mr Butler too much to worry about on election night. His 14 per cent margin makes him almost unassailable.
BARKER MARGIN 16.6% SITTING MEMBER: TONY PASIN (LIBERAL) MAIN RIVALS: MAT O'BRIEN (LABOR) JAMES STACEY (NXT) Despite the fact that Barker is one of the safest Liberal seats in Australia, NXT candidate James Stacey has given the government a scare. Sitting MP Tony Pasin is confident he can see off the threat from Mr Stacey, a former Nationals Senate candidate.
MAKIN MARGIN 5.1% SITTING MEMBER: TONY ZAPPIA (LABOR) MAIN RIVALS: GRAHAM REYNOLDS (LIBERAL) CRAIG BOSSIE (NXT) Former powerlifting champion and Salisbury mayor Tony Zappia has held Makin for Labor since 2007. Labor seems unconcerned about him losing his grip this time. But if Liberal Graham Reynolds can increase the Liberal vote, the seat may be vulnerable in the future.
STURT MARGIN 10.1% SITTING MEMBER: CHRISTOPHER PYNE (LIBERAL) MAIN RIVALS: MATTHEW LOADER (LABOR) MATTHEW WRIGHT (NXT) Irrepressible Industry Minister Christopher Pyne is being challenged by two strong candidates. His high profile and advocacy for South Australian industry is expected to help him see off the two Matthews.
BOOTHBY MARGIN 7.2% SITTING MEMBER: ANDREW SOUTHCOTT (LIBERAL, RETIRED). REPLACED BY NICOLE FLINT MAIN RIVALS: MARK WARD (LABOR) KAREN HOCKLEY (NXT) Former columnist Nicole Flint is tipped to hold on to Boothby for the Liberals, after being endorsed by the party to replace Dr Southcott who has retired as an MP. Unless there is an unexpected swing in support for Labor nationally, Mark Ward is unlikely to gain the momentum needed to win.
HINDMARSH MARGIN 1.9% SITTING MEMBER: MATT WILLIAMS (LIBERAL) MAIN RIVALS: STEVE GEORGANAS (LABOR) DANIEL KIRK (NXT) First-term Liberal MP Matt Williams is a hard worker and a strong advocate for an Adelaide submarine build. But he is at risk of losing the seat to former Labor MP Steve Georganas who remained active in the local community after the 2013 election. Hindmarsh is traditionally SA's most marginal seat and the polls predict the result will be extremely close.
MAYO MARGIN 12.6% SITTING MEMBER: JAMIE BRIGGS (LIBERAL) MAIN RIVALS: GLEN DALLIMORE (LABOR) REBEKHA SHARKIE (NXT) Liberal hardheads are genuinely worried that former minister Jamie Briggs could lose the blue-ribbon seat to his former staffer, Rebekha Sharkie. Mr Briggs was forced to quit the ministry after Christmas but he will be a Liberal hero if he manages to see off the threat of the NXT.
WAKEFIELD MARGIN 3.4% SITTING MEMBER: NICK CHAMPION (LABOR) MAIN RIVALS: KATHLEEN BOURNE (LIBERAL) RICHARD INWOOD (NXT)Wakefield voters are unlikely to reward the Liberals so soon after GM Holden decided to close its factory at Elizabeth. Labor's Nick Champion is the MP most frequently thrown out of Question Time. His margin in Wakefield is small, but voters are unlikely to throw him out this time.