The Del Mar Oaks is an American Thoroughbred horse race run annually in mid August at the Del Mar Racetrack in Del Mar, California. Open to three-year-old fillies, it is contested at a distance of one and one-eighth miles (9 furlongs) on the turf. Since 1994 it has been a Grade I event. From its inception in 1957 through 1964, the Del Mar Oaks was raced at a distance of one mile on dirt. It was raced in two divisions in 1966 and again in 1970. Records Speed record: (at current distance of miles) 1:46.26 – Amorama (2004) Most wins by an owner: 4 – Howard B. Keck (1970, 1971, 1975, 1986) Most wins by a jockey: 4 – Bill Shoemaker (1970, 1971, 1985, 1986) 4 – Chris McCarron (1979, 1984, 1989, 1991) 4 – Corey Nakatani (1998, 2003, 2007, 2014) Most wins by a trainer: 7 – Charlie Whittingham (1970, 1971, 1975, 1979, 1982, 1986, 1991) Winners References Del Mar Oaks details at Del Mar website The 2008 Del Mar Oaks at the NTRA Turf races in the United States Flat horse races for three-year-old fillies Grade 1 stakes races in the United States Horse races in California Recurring sporting events established in 1957 Del Mar Racetrack 1957 establishments in California