National Soap Box Derby Race Calendar When: June 30, 2019 – July 3, 2019 all-day 2019-06-30T00:00:00-05:00 2019-07-04T00:00:00-05:00 Where: Mohler Assembly Hall & Outside Space Missouri State Fair 2503 W 16th St, Sedalia, MO 65301 USA Contact: Keri Hayes (843) 991-3259 Email auto racing motor sport