Today's AU - Griffith Horse Racing Picks

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).

Workout

A workout is a timed sprint over varying distances prior to a race, meant to get a horse fit enough for competition.

Yielding

A rain-soaked turf condition often producing a slick or heavy course and slower finish times.