Wins for Killer Burger Contests Best of Clark County Winners Business/Organization Killer Burger Killer Burger has won Best of Clark County a total of 5 times. By Category Hamburgers 2015, 2018, 2019, 2020, 2021 By Year 2021 Hamburgers 2020 Hamburgers 2019 Hamburgers 2018 Hamburgers 2015 Hamburgers