Sudden veering from a straight course, usually to the outside rail.

A winning horse sent off at extremely high odds.  

1) The group of mares being bred to a stallion in a given year. If a stallion attracts the maximum number of mares allowed by the farm manager, he has a full book. 2) A term used to describe a jockey's riding commitments with his agent An agent handles a jockey's book.  

1) Stamina in a horse. 2) Subsurface of a racing strip.

Bottom Line
A Thoroughbred's breeding on the female side. The lower half of an extended pedigree diagram.  

A poor race run directly following a career-best or near-best performance.  


Boxed (In)
To be trapped between, behind or inside of other horses.  

Brace (or Bracer)
Rubdown liniment used on a horse after a race or workout.  

Break (a horse)

Break Maiden





Breeders' Cup
Thoroughbred racing's year-end championships conducted on back-to-back days at a different racetrack each year, consisting of 14 races, and with purses and awards totaling over $25 million.  

Breeding Fund

Breeze (Breezing)
Working a horse at a moderate speed, less effort than handily.  

Bridge Jumper
A person who wagers large amounts of money, usually on short-priced horses to show, hoping to realize a small, but certain profit. The term comes from the structure these bettors may seek if they lose.  

A piece of equipment, usually made of leather or nylon, which fits on a horse's head and is where other equipment, such as a bit and the reins, are attached 

A filly or mare that has been bred and is used to produce foals.  

1) During a race, two horses who slightly touch each other. 2) Injury that occurs when one hoof strikes the inside of the opposite limb.  

Bucked Shins
Inflammation of the covering of the bone of the front surface of the cannon bone to which young horses are particularly susceptible. This is primarily a condition of the front legs.

Bug Boy
An apprentice rider.  

Bulbs (of the heel)
The two areas on either side of the back of the foot, similar to the heel of the hand.  

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