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
Pioneer Race Course as well as the later built nearby Union Race Course, appear to have affected the placement of the railway's extension into the city, and therefore still affects local property lines. Pioneer Race Course Pioneer Race Course, also known as the Pioneer Race Track, was a horse race track opened in March 1851 in the southern Mission District of San Francisco, California. Pioneer was the first race course in San Francisco. At the time it was built, no streets existed in the neighborhood. After construction, it appears to have been bounded by 24th St. (formerly Park St.), 26th St. (formerly Navy