Authorized (horse) appeared at the time to be the best performance in any of the 2007 Trial races for the Epsom Derby and Authorized was made favourite for the race. Media attention ahead of the Derby focused on Frankie Dettori who, despite winning all the other British Classics at least twice each, had so far failed to win the Derby in 14 attempts. For the race itself, run at Epsom Downs Racecourse on 2 June 2007, Authorized was a clear favourite at odds of 5 to 4, and justified the odds by winning by five lengths in a fast time. Dropped back
Frankie Dettori of winning all seven races on a single day at Ascot Racecourse. In a 2010 interview with the BBC's Newsnight, he admitted that he used to take diuretic drugs to keep his weight down. Dettori said he had used a wide range of substances before the Jockey Club banned them in June 1998 after a spate of positive drug tests revealed how prevalent their use was becoming: "I took Lasix, pee pills, diuretics, laxatives; all sorts". On 1 June 2000 Dettori was injured when the Piper Seneca on which he was traveling crashed near Newmarket. A police spokesman commented "It