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Thoroughbred horse racing is a worldwide
Traditionally racehorses have been owned by very wealthy individuals. It has become increasingly common in the last few decades for horses to be owned by syndicates or partnerships. Notable examples include the 2005
Historically, most race horses were bred and raced by their owners. Beginning after World War II, the commercial breeding industry became significantly more important in North America, Europe and Australasia, with the result that a substantial portion of Thoroughbreds are now sold by their breeders, either at public auction or through private sales. Additionally, owners may acquire Thoroughbreds by "claiming" them out of a race (see discussion of types of races below).
A horse runs in the unique colours of its owner. These colours must be registered under the national governing bodies and no two owners may have the same colours. The rights to certain colour arrangements ("cherished colours") are valuable in the same way that distinctive car registration numbers are of value. It is said that Sue Magnier (owner of George Washington, Galileo etc.) paid £50,000 for her distinctive dark blue colours. If an owner has more than one horse running in the same race then some slight variant in colours is often used (normally a different coloured cap) or the race club colours may be used.
The horse owner typically pays a monthly retainer or, in North America, a "day rate" to his or her
The facilities available to trainers vary enormously. Some trainers have only a few horses in the yard and pay to use other trainers' gallops. Other trainers have every conceivable training asset. It is a feature of racing that a modest establishment often holds its own against the bigger players even in a top race. This is particularly true of