Around every circuit there are corner workers watching over you, and flags are how they communicate at speed. You will get a full rundown in the riders or drivers meeting, but walking in already knowing them makes your first session far less overwhelming. Here is what each one means.
Green
The track is live and you are clear to go. You will usually see it at the start of a session or at a station once you have passed an incident that has been cleaned up.
Yellow
Caution — there is a problem ahead. A standing yellow means trouble off-line; a waving yellow means it is more serious or closer to the racing line. No passing in a yellow zone, and be ready to slow. This is the flag that keeps everyone safe when something goes wrong.
Red
The session is stopped. Slow down smoothly, no sudden braking, look for instructions, and return to the pits or hold as directed. Never treat a red as a chance to gain time — someone likely needs help on track.
Blue with a diagonal stripe
Faster traffic is behind you. It is not an insult — it simply means point them by at the next safe spot and let them past. Good passing etiquette is the heart of a safe run group.
White
A slow-moving vehicle is on track ahead, often a car or bike that has a problem or an official vehicle. Stay alert and be ready to change your line.
Black, and the meatball
A black flag pointed at you means come to the pits and talk to an official — usually for a driving issue or something they want to warn you about. A black flag with an orange circle, nicknamed the meatball, means they see a mechanical problem with your car or bike, such as leaking fluid or a hanging part. Come in either way.
Checkered
The session is over. Finish the lap at a relaxed pace, let your brakes and tires cool, and come in. Before your first day, skim our gear and tech guide so nothing at inspection surprises you, then find a date on the schedule.
