Age- For thoroughbred horse racing all horses are considered born on January 1st.
All Age Race- This is a race where only horses that are two years, or older, can race.
All Out- This is where a horse is showing a particularly strenuous effort.
All Weather Racing- Racing that takes place on an artificial surface allowing racing to occur during any weather condition.
Also Ran- These are horses that did not finish in the top four positions.
Amateur Rider- Riders that are not professional jockeys. They are designate by Mr., Mrs., etc' on the race card to designate that they are non-professionals.
Apprentice Jockey- A jockey that is learning the trade and has not reached professional status.
Back- This is to place a bet or wager on the race.
Backed- This is where a horse has a high volume of bets, or wagers, placed on it.
Backed In- This is where a horse has a high volume of bets placed on it.
Backstretch- This is the straight away on the back portion of the horse racing track.
Banker- A horse that is highly favored by the odds to win the race.
Bat- Refers to the whip used by the jockey.
Bet- Where the money for the wager is put on the horse that the person wants to win.
Betting Board- The board used by a bookmaker to show the odds of each horse winning the prospective race.
Bismarck- A horse that is favored, but not necessarily expected by the bookmakers to win the race.
Blanket Finish- A finish to a race so close that a blanket can be thrown over all of the horses at the finish line at the same time.
Break Maiden- A horse that wins the first race of their career
Breeder's Cup- The final championship race for thoroughbreds.
Bug Boy- Reference used to denote a novice, or apprentice, rider.
Combination Bet- A bet placed on a group of horses to win or place during a race.
Cuppy Track- A track in where the racing surface is loose and easily broken allowing the horse's hooves to "cup" the track.
Cracking Pace- When the leaders of the race start off with a very quick pace.
Daily Racing Form- This form, also known as the "Dailies," offers racing information and news.
Dark Day- When there are no horse races scheduled for a day.
Dark Horse- A race that is relatively unknown with an unknown chance of winning the race.
Derby- A race that is for three year old horses.
Distanced- When a horse is beaten by a long distance by the winning horse.
Dog- The underdog in the race; not expected to win.
Eclipse Awards- The awards given at the end of the year to horses.
Entry- The horse that is entered to run a specific race.
Evenly- When a horse maintains a position during a race. The horse does not gain, nor lose, its position on the track.
Exacta- A bet in where the person wagering predicts the finish of the top two horses of the race.
Exotic Wager- A wager that is other than the traditional wager of win, place, or show.
Faltered- A horse that falls back during the later stages of the race.
Fire- When a horse comes on strong during the race.
Form Player- A person that wagers on horse races solely based on past performances.
Fresh Horse- A well rested horse.
Frozen Track- Where there is moisture on the track that is frozen.
Furlong- 220 yards (equivalent to one eighth of a mile)
Gelding- A castrated male horse.
Green Horse- An inexperienced horse.
Gentleman Jockey- An amateur rider.
Hedging- A bet made by a bookie to cover losses against bets made on a horse.
In the Money- Horses that have placed and will pay out.
Money Rider- A rider that fares well in high stakes racing.
On the Nose- Wagering on a horse to win the race.
Off Track Betting (OTB)- A legalized betting establishment.
Outsider- A horse that is not expected to win the race.
Post Position- The position that the horse starts at the gate.
Purse- The prize money of the horse race.
Race Caller- The person at the track that calls the race.
Roughie- A horse that is not a probable horse to win.
Scope- The potential winning ability that a horse exhibits.
Selling Race- A race that after it's over the winner of the race is sold at auction.
Spell- The time between races.
Sports book- The place where wagers are accepted prior to the races.
Starting Stalls- Gates that open at the same time to ensure that all the horses are out of the gates at the same time.
Yearling- A horse that is just over its first year of life.