morning glory
Horse that performs well in morning workouts but fails to reproduce that form in races.
morning line
Probable odds on each horse in a race, as determined by a mathematical formula used by the track handicapper, who tries to gauge both the ability of the horse and the likely final odds as determined by the bettors.
mudder
Horse that races well on muddy tracks. Also known as a “mudlark.”
muddy
A condition of a racetrack which is wet but has no standing water.
mutuel pool
Short for “parimutuel pool.” Sum of the wagers on a race or event, such as the win pool, daily double pool, exacta pool, etc.
name (of a Thoroughbred)
Names of North American Thoroughbreds are registered by The Jockey Club. They can be no longer than 18 characters, including punctuation and spaces. The words “the,” “and,” “by,” “for,” “in” and “a” are almost always lower case unless they are the first word in the name. Examples “Love You by Heart,” “Go for Wand” and “Strike the Gold.”