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.
jockey’s race
A race whose outcome will hinge mostly on strategic thinking by the riders; i.e., one in which riders must pay close attention to pace to keep their horses fresh for a strong finish.
jog
Slow, easy gait.
judge
An official licensed by the USTA to perform specific duties as outlined under Rule 6.
juvenile
Two-year-old horse.
