Today's NZH - Riverton Horse Racing Picks

Apprentice

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

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).

Handicap

A race where a handicapper has assigned weights to be carried by all runners on the basis of their past racing efforts.