checkered flag

noun

1. a flag having a pattern of black and white squares, used to signal that a car has crossed the finish line and completed its race.
2. this signal indicating the first car to cross the finish line or the winner.

Example Sentences

When the checkered flag waves and the fireworks fly on Sunday night, a thrilling season will end with either Lewis Hamilton or Max Verstappen emerging as this year's champion.

From Ars Technica

Fanning Harding was white as a sheet as he saw an official with a black and white checkered flag step out into the field.

From Project Gutenberg