Synthetic Surface
A racing surface comprised of silica sand and fibers, such as recycled carpet or spandex. The mixture is then sealed with wax.
Apprentice
A new jockey who has not ridden a certain number of winners in a specified time period.
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.

