Bolt

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

Trifecta

A wager picking the first, second and third horses in the exact order. A trifecta box means paying more to ensure the horses can finish in any order in the top three spots.

Bullet

A bullet, or bullet workout, is a workout that was clocked as the best time for a certain distance on a given day.