Workout
A workout is a timed sprint over varying distances prior to a race, meant to get a horse fit enough for competition.
Daily Double
A wager on two consecutive races on the card where bettors have to pick both winners.
Rabbit
Also known as a pacemaker; this is a horse with no expected chance of winning but is used to prompt a quick pace on the front end of the race to the benefit of a stablemate who is a closer.

