With the flags regularly appearing on scoreboards and celebrating throughout the events, it’s easy to spot their similarities, especially with colors like red, white, blue and yellow.

While racing series such as Formula 1 use the white flag to indicate that a slow-moving car is on the track, ... Another unique flag used in the series is the blue flag with a yellow diagonal strip.

Others, less so: A simple blue flag lined with white dots represents the average number of baseballs used during a major league game. But each offers its own subtle truth about the U.S. as it ...

Officials later said there was too little time to put up a red flag and restart the race, but some people expressed frustration that the race finished under a yellow flag. The Indy 500 finished ...

Black flag with white cross: A driver receiving this flag has been disqualified, and the car will no longer be scored. Red and yellow striped flag: The track is slippery, likely from oil or water ...