|Location||San Bruno, California,
|Date opened||September 4, 1899|
|Date closed||July 31, 1964 (fire)|
|Course type||Flat for Thoroughbreds|
|Notable races||Tanforan Handicap|
Tanforan Racetrack in San Bruno, California was a thoroughbred horse racing facility that operated from September 4, 1899 to July 31, 1964. Tanforan was constructed to serve a clientele from the nearby city of San Francisco. The facility was named after Toribio Tanforan, the grandson-in-law of Jose Antonio Sanchez, the grantee of Rancho Buri Buri.  
In addition to horse racing, dog, motorcycle, and auto  races were also held at the track during its early years. On January 25-26, 1910, the Tanforan Racetrack served as the site for the Second International Air Meet in America, organized by the Pacific Aero Club and attended by aviation notables Louis Paulhan and John J. Montgomery.
Closed following California's 1911 anti-gambling legislation, it reopened without betting for the 1923 and 1924 seasons through the subsidy of prominent area businessmen led by sugar magnate Adolph B. Spreckels. After 1924, it would be another ten years before a full racing season was held once the ban on parimutuel betting had been lifted. 
World War I and II internment center
Tanforan was temporarily converted into a United States military training center during World War I and eventually was used as an assembly center during the early days of the Japanese American internment. Approximately 8,000 people of Japanese ancestry (mostly native-born Americans) were housed in Tanforan's stables, grandstands and in one hundred and seventy barracks which were built in the infield, prior to their being sent to internment camps in other parts of the country.
Famous race competitors
Some of Thoroughbred racing's most notable owners and trainers competed at Tanforan Racetrack including owner/breeder James Ben Ali Haggin, and owner/trainer Sam Hildreth. Trainer Noble Threewitt set a record when he won with nine consecutive starters at Tanforan in April 1954.
In 1932, the great Australian champion Phar Lap was brought to Tanforan to rest from his long ocean voyage and then conditioned before being shipped in late January to Agua Caliente Racetrack in Tijuana, Mexico to run in the Agua Caliente Handicap.
Over the years, Tanforan Racecourse saw a number of famous horses compete on its track. Among them, future U.S. Racing Hall of Fame inductee Seabiscuit was stabled at Tanforan after recovering from an injury where he began training for a comeback. .
In 1948, future U. S. Racing Hall of Fame inductee Citation set a new Tanforan track record of 2:02 4/5 for a mile and one quarter in winning the Tanforan Handicap. Two years later his Calumet Farm stablemate and Kentucky Derby winner, Ponder, also won the race. 
- City of San Bruno, California website with information on Tanforan Racetrack
- Calisphere (University of California) – master list of 147 images and 32 texts for Tanforan
- Gettysburg Times - March 12, 1927
- Youngstown (Ohio) Vindicator, June 24, 1923 - "Wealthy Californians To Revive Horse Racing"
- IMDb filming locations
- University of Southern California. Library. Dept. of Special Collections
- Independent.co.uk - March 10, 2007
- San Jose News - March 31, 1932
- New York Times - October 24, 1939
- New York Times, December 12, 1948
- Eugene (Oregon) Register-Guard, April 13, 1950
- Los Angeles Times - May 13, 1956
- Image of the ruins of Tanforan Racetrack following the 1964 fire