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
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