entry
Two or more horses with common ownership (or in some cases trained by the same trainer) that are paired as a single betting unit in one race and/or are placed together by the racing secretary as part of a mutuel field. Rules on entries vary from state to state. Also known as a “coupled entry.”
Equibase
A partnership between The Jockey Club and the Thoroughbred Racing Associations to establish and maintain an industry-owned, central database of racing records. Equibase past-performance information is used in track programs across North America.
equivalent odds
Mutuel price horses would pay for each $1 bet.
exacta (or perfecta)
A wager in which the first two finishers in a race, in exact order of finish, must be picked. Called an “exactor” in Canada.
exacta box
A wager in which all possible combinations using a given number of horses are bet on. The total number of combinations can be calculated according to the formula x2-x, where x equals the amount of horses in the box. For example, boxing four horses would actually be 12 combinations (42-4). To arrive at the cost of the wager, multiply the total combinations by the cost of the individual wager.
exotic (wager)
Any wager other than win, place or show. For the mathematically inclined, the amount of combinations in any exotic wager can be figured by the formula n!/(n-a!), where n is the number of horses in your wager and a is the number of finishers in the wager (two in an exacta, three in a trifecta, etc.)
