Saratoga Race Course is a Thoroughbred horse racing track located on Union Avenue in Saratoga Springs, New York, United States. Opened in 1863, it is often considered to be the oldest major sporting venue of any kind in the country. It is the oldest thoroughbred race track in the country, but counting harness tracks it is actually the fourth oldest racetrack i…Saratoga Race Course is a Thoroughbred horse racing track located on Union Avenue in Saratoga Springs, New York, United States. Opened in 1863, it is often considered to be the oldest major sporting venue of any kind in the country. It is the oldest thoroughbred race track in the country, but counting harness tracks it is actually the fourth oldest racetrack in the U.S.. In 1857 the Empire Race Course was opened on an island in the Hudson River near Albany, but was in operation only a short time.