unknown-track - Race 4

Scratch

A horse is a scratch when injury or other necessity causes it to be withdrawn from the race.

Bute

Shortened word for phenylbutazone, the common non-steroidal medication legal at most racetrack.

Exacta

A bet selecting the first and second horses in a race in the correct order. An exacta box refers to paying a little more to ensure they can finish in either order.