Wistful, an American racehorse, won at which Louisville, Kentucky Grade 1 stakes race?
Wistful (horse):  The daughter of Sun Again and granddaughter of Sun Teddy is best remembered for wins in the Kentucky Oaks, the Coaching Club American Oaks, the Black-Eyed Susan Stakes at Pimlico Race Course. Kentucky Oaks: The Kentucky Oaks is a Grade I stakes race for three-year-old Thoroughbred fillies staged annually in Louisville, Kentucky, United States.
i don't know