Derby (noun)

1. A race, especially a horse race, between competitors from the same area or region.
2. A match between two teams or competitors who are close rivals.

Origin:

From english derby, named after the earl of derby.

Examples:

1. The Kentucky Derby is a famous horse race held annually in Louisville, Kentucky.
2. The city derby between the two local football teams was a heated match.
3. The annual county fair featured a derby for tractors.
4. The rivalry between the two teams was evident in the derby match.
5. The soapbox derby is a race for homemade gravity-powered cars.