The Derby Stakes, popularly known as The Derby, internationally as the Epsom Derby, and under its present sponsor as the Investec Derby, is a Group 1

Conditions races

Conditions races are horse races where the weights carried by the runners are laid down by the conditions attached to the race. Weights are allocated according to; the sex of the runners, with female runners carrying less weight than males; the age of the runners, with younger horses receiving...

 flat

Flat racing

Flat racing is a form of Thoroughbred horse racing which is run over a level track at a predetermined distance. It differs from steeplechase racing which is run over hurdles...

 horse race

Horse racing

Horse racing is an equestrian sport that has a long history. Archaeological records indicate that horse racing occurred in ancient Babylon, Syria, and Egypt. Both chariot and mounted horse racing were events in the ancient Greek Olympics by 648 BC...

 in Great Britain

Great Britain

Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...

 open to three-year-old thoroughbred

Thoroughbred

The Thoroughbred is a horse breed best known for its use in horse racing. Although the word thoroughbred is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed...

 colts

Colt (horse)

A colt is a young male horse, under the age of four. The term "colt" is often confused with foal, which refers to a horse of either sex under one year of age....

 and fillies

Filly

A filly is a young female horse too young to be called a mare. There are several specific definitions in use.*In most cases filly is a female horse under the age of four years old....

. It is run at Epsom Downs

Epsom Downs Racecourse

Epsom Downs is a Grade 1 racecourse near Epsom, Surrey, England. The "downs" referred to in the name are part of the North Downs. The course is best known for hosting the Epsom Derby, the United Kingdom's premier thoroughbred horse race for three-year-old colts and fillies, over a mile and a half...

 over a distance of 1 mile, 4 furlongs and 10 yards (2,423 metres), and is scheduled for early June each year.

It is Britain's richest horse race, and the most prestigious of the country's five Classics.