Today's AU - Grafton Horse Racing Picks

Underlay

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

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.