Blue with a diagonal yellow stripe: A driver must allow an oncoming ... The driver getting to this flag first during the race wins. Why was there a red flag in the Indy 500? There were three ...

oil leaked from one of the race cars, or a broken part of a vehicle. A blue flag with a yellow diagonal stripe on it is waved to inform racers that a faster car, which is a lap ahead of them ...

the blue flag is displayed to drivers to indicate that there may be hard-to-see problems ahead on the track. It warns them to proceed with caution. On road courses, the yellow and red striped flag ...