Today's AU - Mackay Horse Racing Picks

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.

Apprentice

A new jockey who has not ridden a certain number of winners in a specified time period.

Starter Race

An allowance race restricted to horses who have started for a certain claiming price recently.