2,000 Guineas Trial Stakes 2,000 Guineas Trial Stakes The 2,000 Guineas Trial Stakes was a Group 3 flat horse race in Great Britain open to three-year-old thoroughbred colts and geldings. It was run over a distance of 7 furlongs (1,408 metres), and it was scheduled to take place each year in early April. The event was originally held at Ascot. The present grading system was introduced in 1971, and the race was classed at Group 3 level. It was staged at Newmarket in 1978, and transferred to Salisbury in 1979. It was discontinued after 1986. The race served as a trial for the 2000
Union Race Course Trotting Park' but the increasing value of the land for housing proved too much. The final horse race was run at Union Race Course on July 18, 1863. The positioning of this race course, as well as the earlier built race course called Pioneer Race Course appear to have affected the placement of the San Francisco-San Jose Railway. Union Race Course Union Race Course was a horse racing track opened in the 1850s in San Francisco, California located in the Mission District. There were two horse race courses in the Mission District at this time, the other being Pioneer Race