minus pool
A mutuel pool caused when a horse is so heavily played that, after deductions of state tax and commission, there is not enough money left to pay the legally prescribed minimum on each winning bet. The racing association usually makes up the difference.
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.
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.