A handicap race in horse racing is a race in which horses carry different weights, allocated by the handicapper. A better horse will carry a heavier weight, to give him or her a disadvantage when racing against slower horses. The handicapper's goal in assigning handicap weights is to enable all the horses to finish together (in a dead heat).
The skill in betting on a handicap race lies in guessing which horse can overcome his or her handicap. Although most handicap races are run for older, less valuable horses, this is not true in all cases; some great races are handicaps, such as the Grand National steeplechase in England and the Melbourne Cup in Australia. In the United States over 30 handicap races are classified as Grade I, the top level of the North American grading system. Handicaps are less common in harness racing, where handicapping is by increased distance rather than increased weight.
In a horse handicap race (sometimes called just "handicap"), each horse must carry a specified weight called the impost, assigned by the Racing secretary based on factors such as past performances, so as to equalize the chances of the competitors. To supplement the combined weight of jockey and saddle, up to the assigned impost, lead weights are carried in saddle pads with pockets, called lead pads.
The weight for age scale was introduced by Admiral Rous, a steward of the Jockey Club. In 1855 he was appointed public handicapper.
Thoroughbred handicapping is the art of predicting horses who have the greatest chance of winning a race, and profiting from these predictions at the horse races. The Daily Racing Form (DRF), a newspaper-style publication, is an important tool of the handicapper or horseplayer. The DRF details statistical information about each horse entered in a race, including detailed past performance results, lifetime records, amount of money earned, odds for the particular horse in each past race, and a myriad of other information available for casual or serious study.
The handicapping process can be simple or complex but usually includes the following elements prior to the race: