Green flag- Green means go

Green Flag used in HPDE Track Days

Just like on the road, green means go here.  The green flag means the track is clear and passing is allowed. The green flag is usually shown only at a specific corner worker station for 1-2 laps.  If you pass a corner worker not showing a flag, that means the track is green. 

Yellow flag- caution flag

Yellow Flag used in HPDE Track Days

You can remember this by thinking of caution tape or wet floor signs.  The yellow caution flag means caution and no passing is allowed. 

Stationary yellow flag

If a corner worker holds up a stationary yellow flag, this means proceed with caution (slow down and do not pass) until you pass a corner worker station without a yellow flag. Stationary yellow flags are typically used when a driver goes off track or is stationary on track. 

Double yellow flag:

A double yellow flag means there is a full course caution.  There is no passing during the warm-up lap.  In HPDE, this is usually shown on the warm-up lap.  Use this lap to get your tires up to operating temperature. 

Single waving yellow flag:

Caution on the racing line.  Slow down and do not pass.  Look out for an incident on the racing line. Proceed with caution until you pass a corner worker without a yellow flag and the incident itself.  Always be cautious when going from a caution to racing speed.  You may have run over oil or debris, so make sure your car feels right before going back to full speed. 

Yellow Flag with Red Stripes 

Debris Flag used in HPDE Track Days

This is the debris flag. Something is on the track that is not supposed to be there. This flag usually means something came off of someone’s car, someone dropped fluid, someone hit the a cone onto the track, or someone went off and brought gravel or dirt onto the track surface.  Try to identify what the flag was for and proceed accordingly.  Once the flag is gone, the track will still be slippery if there was a fluid spilled. If the flag was for a cone on track, be careful in that section for the rest of the session. 

Black flag

Black Flag used in HPDE Track Days

Open black flag

Open black flags are typically accompanied with a number board of the car they are intended for.  If you are shown a black flag, proceed to the pits to talk to an official.  This flag is usually shown if you have been driving dangerously. In hpde, it can be shown for going off the track with all four tires, passing without a point-by, passing dangerously, or any other dangerous behavior. 

Black flag furled (rolled up) and pointed at you 

This is a warning flag.  If you continue to drive dangerously, you will be black flagged.

Waving black flag

A black flag waving at all corner stations means proceed to the pits and wait for a restart.   This flag is often used when someone immobilizes their car on track.  Depending on the incident and amount of time left in the session, the session may not restart. 

Black flag with orange circle (aka mechanical flag)

Mechanical Flag used in HPDE Track Days

Commonly referred to as the meatball flag.  This means your car is junk and you have to come into the pits to talk to an official.  It can be for anything from dropping fluid, having an open trunk, having a body panel, or fender liner coming off.  I recently received a meatball flag for having a taillight hang by just a wire. 

Blue Flag with Yellow Stripe

Blue Flag used in HPDE Track Days

Faster car behind you.  Check your mirrors when you see this flag, unless you are the faster car behind someone. Allow the faster car to pass to avoid causing a train.  Blue flags can be shown when a car is rapidly approaching you or when you have just gone too long without giving a point-by.  If you watch F1, you can remember this front the blue flags shown when the race leaders are lapping the field.  

Red Flag 

Red racing Flag used in HPDE Track Days

Emergency.  The session is not safe to continue. Check your mirrors,  slow down and stop on the right side of the track in view of a corner worker.  Stay on the pavement to avoid a grass fire. The left side will be used for emergency vehicles. Make sure you are stopping in a safe location, not on a blind corner or crest.  Watch for the corner worker to switch the flag to direct you off track. 

This flag is used for multiple car 

White Flag 

White racing flag used in HPDE track days
Emergency Vehicle Flag used in HPDE Track Days

May be white or white with a red cross. There is an emergency vehicle or slow moving vehicle on track. You may pass with extreme caution. Often this is used when a disabled vehicle is limping to the pits. 

Checkered Flag 

Checkered racing Flag used in HPDE Track Days

The checkered flag is shown when there is one lap left in the session. Most organizations do not allow passing when the checkered flag is shown, with the exception of NASA who have the same passing rules during the checkered as the regular passing rules for your run group.  Some like to use this lap to cool down.  Others try to keep their pace up to get accurate tire pressure readings. Either way, make sure you keep up a reasonable pace to avoid prolonging the session. You must pit the next time you approach the pit entry. If you miss the pit, you will have blown the checkered and delay the next session. 

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