in the money
A horse that finishes first, second or third.
infield
Area encompassed by the inner rail of the racetrack.
inquiry
Reviewing the race to check into a possible infraction of the rules. Also, a sign flashed by officials on the tote board on such occasions. If lodged by a jockey, it is called an objection.
ITW
Intertrack wagering.
Jail
Refers to the requirement that a horse which has been claimed that next runs in a claiming race must run for a claiming price 25 percent higher for the next 30 days. Commonly used in the phrase The horse is in (out of) jail.
jockey fee
Sum paid to rider for competing in a race.