American thoroughbred racing top attended events on Saturday and its companion race the Breeders' Cup Distaff on Friday those locations rotates annually. Notes: American thoroughbred racing top attended events This is a listing of the top attended stakes races for thoroughbred racing in North America by year. The chart lists the paid attendance of the eight top average attended races including the Kentucky Derby on Saturday and its companion race the Kentucky Oaks on Friday at Churchill Downs in Louisville, Kentucky; the Preakness Stakes on Saturday and its companion race the Black-Eyed Susan Stakes on Friday at Pimlico Race Course in Baltimore, Maryland; the Belmont Stakes
American Champion Three-Year-Old Filly American Champion Three-Year-Old Filly The American Champion Three-Year-Old Filly is an American Thoroughbred horse racing honor awarded annually to a female horse in Thoroughbred flat racing. It became part of the Eclipse Awards program in 1971. The award originated in 1936 when both the "Daily Racing Form" (DRF) and Turf and Sports Digest (TSD) magazine began naming an annual champion. Starting in 1950, the Thoroughbred Racing Associations (TRA) began naming its own champion. The following list provides the name of the horses chosen by these organizations. There were several disagreements, with more than one champion being recognized on five occasions.