A paddock is a small enclosure for horses. In the United Kingdom, this term also applies to a field for a general automobile racing competition, particularly Formula 1. Description In Canada and the United States of America, a paddock is a small enclosure used to keep horses. In the United Kingdom, this term has a similar meaning, and also applies to a field for a general automobile racing competition, particularly Formula 1. The most common design provides an area for exercise and is often situated near the stables. Larger paddocks may have grass maintained in them, but many are dirt or a similar natural surface. In those cases drainage and a top layer of sand are often used to keep a suitable surface in the paddock. In the American West, such an enclosure is often called a corral, and may be used to contain cattle or horses, occasionally other livestock. The word paddock is also used to describe other small, fenced areas that hold horses, such as a saddling paddock at a racetrack, the area where race horses are saddled before a horse race. Horse breeders may let stallions loose in a paddock or field with mares that they would like the stallion to impregnate. This allows the most natural form of mating to occur and the regularity of mating using this method promotes the chances of a mare becoming pregnant.