f1 colored flag signalling
Chequered flag

Chequered flag

Indicates to drivers that the session has ended. During practice and qualifying sessions it is waved at the allotted time, during the race it is shown first to the winner and then to every car that crosses the line behind him.

yellow flag

Yellow flag

Indicates danger, such as a stranded car, ahead. A single waved yellow flag warns drivers to slow down, while two waved yellow flags at the same post means that drivers must slow down and be prepared to stop if necessary. Overtaking is prohibited. 

green flag

Green flag

All clear. The driver has passed the potential danger point and prohibitions imposed by yellow flags have been lifted. 

red flag

Red flag

The session has been stopped, usually due to an accident or poor track conditions.

blue flag

Blue flag

Warns a driver that he is about to be lapped and to let the faster car overtake. Pass three blue flags without complying and the driver risks being penalised. 

yellow and red striped flag

Yellow and red striped flag

Warns drivers of a slippery track surface, usually due to oil or water. 

Black with orange circle flag

Black with orange circle flag

Accompanied by a car number, it warns a driver that he has a mechanical problem and must return to his pit.

Half black, half white flag

Half black, half white flag

Accompanied by a car number, it warns of unsporting behaviour. May be followed by a black flag if the driver does not heed the warning.

black flag

Black flag

Accompanied by a car number, it directs a driver to return to his pit and is most often used to signal to the driver that he has been excluded from the race.

white flag

White flag

Warns of a slow moving vehicle on track.