Group One or Group 1 is the term for conditions races used in most of the world for the highest level of thoroughbred racing and harness racing. Conditions races are horse races where the weights carried by the runners are laid down by the conditions attached to the race Thoroughbred horse racing is a worldwide Sport and Industry involving the racing of Thoroughbred Horses It is governed by different national Harness racing is a form of Horse-racing in which the horses race in a specified gait In the United States, Canada and Japan, "Grade I" is used instead. The United States of America —commonly referred to as the Country to "Dominion of Canada" or "Canadian Federation" or anything else please read the Talk Page For a topic outline on this subject see List of basic Japan topics. A graded stakes race is a term applied by the American Graded Stakes Committee of the Thoroughbred Owners and Breeders Association to a Thoroughbred horse race in These races attract the best horses, and are for very large stake money.