The Caesars Sportsbook Del Mar Derby is an American thoroughbred horse race run annually during the first week of September at Del Mar Racetrack in Del Mar, California. A Grade II race open to three-year-old horses, it is contested on turf over a distance of one and one-eighth miles (9 furlongs). In 1968 there was a dead heat for the win. In 2021, the race was presented for the first time by Caesars Sportsbook.