Election-night counting showed that Stacey was second to Pasin on first preferences, however the indicative two-candidate preferred count had been done between Pasin and Labor candidate Mat O'Brien, which meant there was no early indication of whether Stacey would receive enough preferences to beat Pasin before postal, absentee and provisional votes were counted and preferences distributed in the following two weeks. Ultimately, it was confirmed that Stacey had not only overtaken O'Brien on first preferences, but reduced Pasin's margin in Barker to 4.7 percent—thus making Barker a marginal seat for the first time since Cameron's near-defeat in the 1943 landslide. However, Barker remains a comfortably safe Liberal seat in a "traditional" two-party matchup with Labor; Pasin only suffered a one-percent swing against Labor.