Horse racing, sport of running horses at speed, mainly Thoroughbreds with a rider astride or Standardbreds with the horse pulling a conveyance with a driver. These two kinds of racing are called racing on the flat and harness racing, respectively. Some races on the flat such as steeplechase, point-to-point, and hurdle races—involve jumping. This article is confined to Thoroughbred horse racing on the flat without jumps. Racing on the flat with horses other than Thoroughbreds is described in the article quarter-horse racing.
Horse races vary widely in format and many countries have developed their own particular traditions around the sport. Variations include restricting races to particular breeds, running over obstacles (cross-country), running over different distances (typically a mile, mile and a quarter, mile and an 8th, mile and a 16th), running on different track surfaces and running in different gaits. The origins of modern racing lie in the 12th century, when English knights returned from the Crusades with swift Arab horses. 슬롯머신
During the next 4 centuries, an increasing number of Arab stallions were imported and bred to English mares in order to produce horses that possessed both speed and endurance. While horses are sometimes raced purely for sport, a major part of horse racing’s interest and economic importance is in the gambling associated with it, an activity that in 2008 generated a worldwide market worth around US$115 billion. Many people use a handicapper which is one who assigns weights for a handicap race and makes selections based on past performances. Horse racing is an equestrian sport which has been practiced over the centuries; the chariot races of Roman times are an early example, as is the contest of the steeds of the god Odin and the giant Hrungnir in Norse mythology. It is often associated with gambling. The common nickname for horse racing is The Sport of Kings. Horse racing is one of the oldest of all sports, and its basic concept has undergone virtually no change over the centuries.