What Do the NASCAR Flags Mean?

NASCAR utilizes nine different flags to alert race drivers of various situations on the track during a race. Each flag is unique and easily recognizable by drivers and fans alike. The meaning of some NASCAR flags, such as the checkered flag, are well-known, but the meanings of some of the other flags are somewhat obscure.

  1. Black Flag, Black Flag with a White Cross

    • A black flag waved at a specific car warns the driver to pit immediately because he has violated a rule or because his car has a problem. Drivers that fail to pit after receiving a black flag are shown a black flag with a white cross to notify the driver that he will not be scored until he pits.

    Blue Flag with a Yellow Stripe

    • A driver is being alerted that faster cars are approaching when he sees a blue flag with a yellow stripe.

    Checkered Flag

    • The race has ended when the flagman waves the checkered flag.

    Green Flag

    • The green flag starts a race, waves to restart the race after a caution or stoppage and continues to wave as the race proceeds.

    Red Flag

    • The flagman waves a red flag for various reasons, but all have the same result: The race is stopped. Among the reasons for a red flag are an unsafe track; a blocked track; too much precipitation; and a crash resulting in an injured driver that must have medical attention.

    Yellow Flag, Yellow Flag with Red Vertical Stripes

    • A yellow flag signals to drivers to slow down because an accident has occurred or the track is not clear because of debris. You'll see a yellow flag with red vertical stripes on road courses; it alerts drivers to be cautious of dangerous road conditions ahead.

    White Flag

    • A white flag signals the last lap of a race.