Handicap

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

Starter Race

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

Rabbit

Also known as a pacemaker; this is a horse with no expected chance of winning but is used to prompt a quick pace on the front end of the race to the benefit of a stablemate who is a closer.