In the 2020 election, David Perdue (R) beat John Ossoff (D) by 1.8 points, securing 49.7% of the vote to Ossoff's 47.9%. Libertarian candidate Shane Hazel got 2.3% of the vote.
However, by not securing more than 50% of the vote, Perdue and Ossoff go into a runoff election on 5 January where Shane Hazel is eliminated.
What will the margin of victory be between John Ossoff and David Perdue in the 2020 5 Jan GA (Regular) Runoff Election?
This number resolves as the percentage point margin of victory of David Purdue over John Ossoff, per official state results after certification of the vote. This number will be negative if Ossoff wins.
For example, the actual results from the November election of Purdue getting 49.7% of the vote and Ossoff getting 47.9% would be "+1.8".
If hypothetically Ossoff got 50.1% of the vote and Purdue got 49.3%, this would resolve as -0.8.
If the election does not proceed with these two candidates as scheduled, the question will resolve ambiguous.