ABSTRACT This study examines how relative policy performance against the spread of COVID-19 corresponds to citizens’ political support. We argue that citizens form political attitude using relative COVID-19 assessments with other governments. We also examine the extent to which relative comparative assessments are likely among sophisticated voters. Using original survey data from South Korea in April 2020, we found that a relatively positive evaluation of incumbent performance corresponds to higher political support. This paper is well situated in the existing literature as it shows that voters who benchmark the performance of other countries make an informed decision regarding their political support.