The National Championship Air Races will run from September 13 – 17, 2023. Aircraft qualification periods are scheduled for Monday through Wednesday. In general, the National Championship Air Races begin daily at 8 a.m. with Formula One and Biplane Class races with the remaining four classes and aerobatic performances and demonstrations following later in the day. Unlimited Class races usually occur during the afternoon with the last event of the day ending at approximately 4:30 p.m. Schedule subject to change.