Two or more horses that have the same owner or trainer and are run as an entry (a bet on one horse automatically includes the other.

Two or more horses belonging to the same owner or trained by the same person are said to be "coupled" and they run as an "entry" comprising a single betting unit. Their program number regardless of post position would be "1" and "1A." A second "entry" in the race would be listed in the program as "2" and "2A." A bet on one horse of an entry is a bet on both.

Two or more horses running as a single entry and betting unit due to either the same ownership or trainer. Coupling rules vary from state to state.

Two horses are coupled when they run as an entry, or single betting interest. Daily Racing Form: Daily publication that includes past performances and charts.

Two horses entered by the same trainer in a race. Listed in the program as 1 and 1A. If two trainers couple horses the second group will be listed as 2 and 2B.