{{Infobox racehorse , horsename = Diatome , image = , caption = , sire =

Sicambre {{Infobox racehorse , horsename = Sicambre , image = , caption = , sire = Prince Bio , grandsire = Prince Rose , dam = Sif , damsire = Rialto , sex = Stallion , foaled = 1948 , country = France , colour = Bay , breeder = Haras d ...

, grandsire = Prince Bio , dam = Dictaway , damsire = Honeway , sex =

Stallion A stallion is a male horse that has not been gelded (castrated). Stallions follow the conformation and phenotype of their breed, but within that standard, the presence of hormones such as testosterone may give stallions a thicker, "cresty" nec ...

, foaled = 13 June 1962 , country =

Great Britain Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is ...

, colour =

Dark Bay Bay is a hair coat color of horses, characterized by a reddish-brown or brown body color with a black point coloration on the mane, tail, ear edges, and lower legs. Bay is one of the most common coat colors in many horse breeds. The black ...

, breeder =

Baron Guy de Rothschild Baron is a rank of nobility or title of honour, often hereditary, in various European countries, either current or historical. The female equivalent is baroness. Typically, the title denotes an aristocrat who ranks higher than a lord or knig ...

, owner = Baron Guy de Rothschild , trainer =

Geoffroy Watson Geoffrey, Geoffroy, Geoff, etc., may refer to: People * Geoffrey (name), including a list of people with the name * Geoffroy (surname), including a list of people with the name * Geoffrey of Monmouth (c. 1095–c. 1155), clergyman and one of the ...

, record = 12: 6-5-1 , earnings = F 1,643,013 +

US$ The United States dollar (symbol: $; code: USD; also abbreviated US$ or U.S. Dollar, to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official ...

90,000 , race =

Prix Noailles The Prix Noailles is a Group 3 flat horse race in France open to three-year-old thoroughbred colts and fillies. It is run over a distance of 2,100 metres (about 1 mile and 2½ furlon ...

(1965)

Prix du Prince d'Orange The Prix du Prince d'Orange is a group-3 flat horse race in France open to three-year-old thoroughbreds. It is run at Longchamp over a distance of 2,000 metres (about 1¼ miles), and it is scheduled to ...

(1965)

Washington, D.C. International The Baltimore Washington International Turf Cup is an American Grade III invitational horse race run over one mile. Inaugurated in 1952, it was raced at Laurel Park Racecourse on the turf in Laurel, Maryland, at a distance of miles (12 furlong ...

(1965)

Prix Ganay The Prix Ganay is a Group 1 flat horse race in France open to thoroughbreds aged four years or older. It is run over a distance of 2,100 metres (about 1 mile and 2½ furlongs) at Long ...

(1966)
Prix Boiard (1966) , awards= , honours = Prix Diatome at

Hippodrome de Saint-Cloud Hippodrome de Saint-Cloud is a grass race course for Thoroughbred flat horse racing opened in 1901 at 1 rue du Camp Canadien in Saint-Cloud near Paris, France. During World War 1, the race course site housed the No. 4 Canadian Stationary Hospital ...

, updated= 7 October 2006 Diatome (13 June 1962 – 8 October 1985) was a British-bred

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. Thoroughbreds are c ...

racehorse Horse racing is an equestrian performance sport, typically involving two or more horses ridden by jockeys (or sometimes driven without riders) over a set distance for competition. It is one of the most ancient of all sports, as its basic pr ...

Background

Diatome was owned and bred by the French

bank A bank is a financial institution that accepts deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital markets. Because ...

er,

and was a descendant of

Prince Palatine Prince Palatine (1908–1924) was a United Kingdom of Great Britain and Ireland, British Thoroughbred horse racing, racehorse. He was named for Duchy of Lancaster, County Palatine of Lancaster near where his breeder William Walker, 1st Baron Wa ...

Racing career

Diatome won important races in

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...

but had the bad luck of being foaled the same year as superstars

Sea-Bird Seabirds (also known as marine birds) are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same enviro ...

and Reliance. He finished second to Reliance in the

Prix du Jockey Club The Prix du Jockey Club, sometimes referred to as the French Derby, is a Group 1 flat horse race in France open to three-year-old thoroughbred colts and fillies. It is run at Chantilly over a ...

and the

Grand Prix de Paris The Grand Prix de Paris is a Group 1 flat horse race in France open to three-year-old thoroughbred colts and fillies. It is run at Longchamp over a distance of 2,400 metres (about 1½ miles), and i ...

. In the

Prix de l'Arc de Triomphe The Prix de l'Arc de Triomphe is a Group 1 flat horse race in France open to thoroughbreds aged three years or older. It is run at Longchamp Racecourse in Paris, France, over a distance ...

, Diatome finished third behind Reliance and winner Sea Bird. However, he earned a prestigious victory in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

in the 1965

at the

Laurel Park Racecourse Laurel Park, formerly Laurel Race Course, is an American thoroughbred racetrack located just outside Laurel, Maryland which opened in 1911. The track is miles in circumference. Its name was changed to "Laurel Race Course" for several decades unt ...

Laurel, Maryland Laurel is a city in Maryland, United States, located midway between Washington and Baltimore on the banks of the Patuxent River. While the city limits are entirely in northern Prince George's County, outlying developments extend into Anne Arunde ...

Stud record

Diatome was retired to

stud Stud may refer to the following terms: Animals * Stud (animal), an animal retained for breeding ** Stud farm, a property where livestock are bred Arts and entertainment * Stud (band), a British progressive rock group * The Stud (bar), a gay ba ...

in 1967 at his owner's

Haras de Meautry Haras de Meautry in Touques, Calvados, Normandy, France, is a thoroughbred horse breeding farm. It was acquired in the 19th century by horse-racing enthusiast Alphonse James de Rothschild (1827–1905) who passed it down to his offspring so that ...

and in 1975 was sent to a breeding farm in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. He died on 8 October 1985.

References

Diatome's pedigree and stats
1962 racehorse births 1985 racehorse deaths Racehorses bred in the United Kingdom Racehorses trained in France Thoroughbred family 12-e