AU - Pakenham - Race 6

Underlay

A horse that is going off at lower odds than it deserves based on performance.

Scratch

A horse is a scratch when injury or other necessity causes it to be withdrawn from the race.

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.