Just to clarify about the "Breeder's Cup" title of the race series, it's not just because breeders created the races. It is because these are races for the progeny of stallions whose owners paid fees to make their sire's colts and fillies eligible to enter these races by paying reduced entry fees according to a periodic schedule. IN contrast, a superlative horse who is not the progency of a breeder's cup nominated stallion can still enter the race, but the entry fee in this case is several hundred thousand dollars. The advantage for Breeders cup nominated stallions is that mare owners who keep their colts/filies and race them, and subsequent prospective of the stallion's progeny, can pay relatively small periodic entry fees to keep the colt or filly breeders cup eligible, until the young horse's owner has enough information about the horse's deevlopment as a racehorse to either decide that it is a potentially superior horse (and then continue to pay the periodic fees to maintain its eligibility for the b.c. races, in the event that it is good enough to enter these top-flight races), or they decide that the horse will never be able to compete at that level, at which time they can stop paying the fees. There have been several cases of non-eligible horses being "supplementally nominated" to the Breeders Cup races by their owners' paying the huge entry fees. Some of these horses have finished worse than fifth (making it a very expensive losing gamble for their owners!) and a few have won enough money for it to be a risk that paid off.