unknown-track - Race NaN

Apprentice

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

Breeder

The owner of a horse’s dam – or mother - at the time a horse is foaled.

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.