RabbitA speed horse running as an entry with another, usually come-from-behind horse. The rabbit is expected to set a fast pace to help the chances of its stablemate.
Racing SecretaryOfficial who drafts conditions of races and assigns weights for handicap events.
RailThe barrier on either side of the racing strip. Sometimes referred to as the "fence."
Rail RunnerHorse that prefers to run next to the inside rail.
RankA horse that refuses to settle under a jockey's handling in a race, running in a headstrong manner without respect to pace.
Receiving BarnStructure used by horses shipping in for a race who do not have a stall at that racetrack.
Refuse1) When a horse will not break from the gate. 2) In jumping races, balking at a jump.
ReinsLong straps, usually made of leather, that are connected to the bit and used by the jockey to control the horse.
Reserved1) Held for a particular engagement or race. 2) Held off the pace.
Ridden OutA horse that finishes a race under mild urging, not as severe as driving.
RoanA horse color where the majority of the coat of the horse is a mixture of red and white hairs or brown and white hairs. The mane, tail and legs may be black, chestnut or roan unless white markings are present. Starting with foals of 1993, the color classifications gray and roan were combined as "roan or gray."
RouteBroadly, a race distance of longer than 1 1/8 miles.
RouterHorse that performs well at longer distances.
Run-Out BitA special type of bit to prevent a horse from bearing out (or in).