(1) the track announcer's play-by-play of the race; (2) the various points during a race that are used as a basis for compiling the past performance charts.
Chalk
Favorite.
Charts
The past performances.
Chute
The extension of the racing surface at the top of the backstretch (in sprints) or stretch (in routes) that is necessary in some races so that the horses have a straight run to the first turn.
Claimer
A horse who runs in claiming races.
Class
(1) the strength of a race; (2) the level at which a horse has shown the ability to compete effectively.
Class structure
The types of races scheduled during a meet broken down by their purported class.
Climbs
Runs with an unusual high motion suggesting that he is flustered or tired.
Closers
Horses who do their best running late.
Clubhouse turn
The first turn in two turn races.
Colt
An unaltered male horse aged 2 to 4.
Company line
The first three finishers in each race shown in a horse's past performances.
Condition book
The tentative schedule of races to be run during a stated period of time.
Conditional race
A race only open to horses who have not won a specified number of races in their lifetime.
Conditions
The terms of a race.
Connections
A horse's trainer and owner.
Consolation double
The payout to holders of a daily double ticket pairing the winner of the first race with a late scratch in the second race.
Cuppy
A racing surface that breaks into clods and shows hoofprints.