Generally speaking, if you could know everything about the horse before putting in a claim .... there would be fewer claims .... Do you have a trainer lined up? If so, she or he ought to be able to fill you in. If not ... maybe you want to look at that first. Here is a link [
www.gaming.ny.gov] to the NY Gaming Commission rules on thoroughbred racing. Even if you're not in NY, it will give some ideas what you're getting into. Claiming Races section starts page 120.
