Santa Anita Oaks is an American Grade II Thoroughbred horse race held annually in early April at Santa Anita Park in Arcadia, California. Open to three-year-old fillies willing to race 8.5 furlongs on the dirt. From Wikipedia
Italian jockey Frankie Dettori ties the record for most consecutive wins in a single day at Santa Anita, coming close to his own record of seven wins.