unknown-track - Race 1

Bolt

A sudden veering to the inside or outside rail, often caused by the horse spooking or shying from something.

Minus Pool

A pari-mutuel pool – typically a show pool - where one horse is so heavily bet that after deductions there is not enough money left to cover the prescribed minimum on each bet.

Overlay

A horse going off at higher odds than his recent efforts show that he deserves.