The Bay Meadows Derby was an American Thoroughbred horse race for three-year-old horses of either gender on the Longden Turf Course at Bay Meadows Racetrack.
Bay Meadows was in San Mateo, California.
The Bay Meadows Derby first ran in 1954 on the dirt.
In 1957, Round Table (horse) won the race, the first of many as a three-year-old.
There were ten final race dates run in August 2008 for the San Mateo County Fair, with the last official race occurring on August 17, 2008.