Pat Day Mile Stakes Trial, but returned to sweep the Derby, Preakness Stakes and Belmont Stakes. Pat Day Mile Stakes The Pat Day Mile Stakes is an American Grade 3 Thoroughbred horse race held on Kentucky Derby day run at Churchill Downs in Louisville, Kentucky for three-year-olds willing to race one mile on the dirt. The current purse is $250,000 for the event. Originally, the event was known as the Derby Trial Stakes and was held one week before the Kentucky Derby. It was first run in 1924 and every year since, with the exception of 1928. The race name was given similar to
Churchill Downs in 1875. His father-in-law, Richard Ten Broeck, was an accomplished horse breeder and trainer, and introduced Clark to horse racing, attending the English Derby at Epsom Downs outside London. Churchill Downs filled a void in Louisville left by the closing of Oakland and Woodlawn, two earlier race courses. The then-rural location was along Louisville and Nashville Railroad tracks, allowing for easy transport of horses. Clark, who preferred longer races to the relatively short ones that had become popular by the 1890s, was running short of funds, and in 1894 sold the track to a syndicate led by William E. Applegate.