Today's AU - Warwick Farm Horse Racing Picks

Scratch

A horse is a scratch when injury or other necessity causes it to be withdrawn from the race.

Pari-Mutuel

A pool style wagering system, where all money input through betting is divided among those with winning tickets (save for various deductions by the track operators).

Objection

Claim of foul lodged by a jockey for perceived dangerous or illegal riding by a rival.