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
Derby (horse race) Derby (horse race) A derby ( , ) is a type of horse race named after the Derby Stakes run at Epsom Downs Racecourse in England. That was in turn named after Edward Smith-Stanley, 12th Earl of Derby, who inaugurated the race in 1780. Perhaps the best-known example after the original is the Kentucky Derby in the United States. Traditionally, the term "derby" is used strictly to refer to races restricted to three-year-olds, as the English and U.S. Triple Crown races all are. The most notable exceptions to this rule are the Hong Kong Derby and Singapore Derby, restricted to