Workout

A workout is a timed sprint over varying distances prior to a race, meant to get a horse fit enough for competition.

Main Track Only

A horse entered for main track only (MTO) is one hoping the weather forecast or track conditions will move the race off the turf course and onto the main track. They are scratched the morning of the race if the conditions stay dry.

Overlay

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