High Quality Content by WIKIPEDIA articles! The Black-Eyed Susan Stakes is an American Thoroughbred horse race run annually at Pimlico Race Course in Baltimore, Maryland. The race is open to three-year-old fillies willing to race one and one-eighth miles on the dirt and currently offers a purse of $250,000. The Black-Eyed Susan was given graded stakes race status in 1973 and has been a Grade II event since 1976.