Breeding: A female that has never been bred.
Harness racing: A stallion, mare or gelding that has never won a heat or race at the gait at which it is entered to start and for which a purse is offered.
Thoroughbred racing: A horse or rider that has not won a race.
Long hairs growing on the crest of the horse’s neck, which are usually kept clipped to about six inches in length for neatness, or decoratively braided.
Female horse five-years-old or older.
September. In theory, because mares that have not run well during the summer often “wake up” in September.