1000 Guineas Stakes 1000 Guineas Stakes The 1000 Guineas Stakes is a Group 1 flat horse race in Great Britain open to three-year-old fillies. It is run on the Rowley Mile at Newmarket over a distance of 1 mile (1,609 metres), and it is scheduled to take place each year in late April or early May on the Sunday following the 2000 Guineas Stakes. It is the second of Britain's five Classic races, and the first of two restricted to fillies. It can also serve as the opening leg of the Fillies' Triple Crown, followed by the Oaks and the St Leger, but
Pioneer Race Course 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 St.), Capp St., and Florida St. It was funded and built by local businessmen George Treat and his brother John Treat. The racetrack was physically built by Alfred Green. The