The Queen talks to former US ambassador to Britain William Farish and his wife Sarah at the 133rd Kentucky Derby.
The Queen watches a race at the Kentucky Derby with the Duke Of Edinburgh. The Queen is renowned for her love of horse racing.
Race goers Colonel Bob Thompson, dressed as Colonel Sanders, and Judy Gindy, dressed as the Queen, arrive at the Kentucky Derby.
The Queen also viewed the Derby trophy which has an upside down horse shoe on the front. Jay Ferguson, trophy keeper, said: "She said 'It keeps the luck in' and that's right."
The Derby was won by Street Sense. It is not known whether the Queen placed a bet.
Milliners Carla Ann Faso (left) and Loretta Corsetti (centre), whose designs appear at Ascot as well as in America, attended the Derby with friend Riki Altman.
Two unnamed revellers show off their extravagant hats at the historic Derby, which was the first ever attended by the Queen.