Racing Post Trophy
A month later, on 21 October 2006, Authorized returned to Newbury to contest the Group One Racing Post Trophy over one mile. The race was run on heavy going, and Authorized was ridden for the first time by Frankie Dettori. He won at odds of 25 to 1, by one and three quarter lengths from Charlie Farnsbarns. The odds-on favourite Eagle Mountain finished fourth. Authorized was quoted immediately after the race at 16 to 1 for the 2007 Epsom Derby but this was soon cut to 10 to 1.