( CNN ) -- There was a major shock on the second day of the Royal Ascot meeting when Irish horse So You Think , rated as one of the bankers of the week , was turned over in the feature Group One Prince of Wales 's Stakes . Tuesday 's opening day of England 's premier Flat racing fixture saw the top three-year-old , Frankel , justify his odds-on favoritsm with an impresive win in the St James 's Palace Stakes -- and So You Think was expected to follow suit at odds of 4-11 . However , the five-year-old , hyped up by his usually reserved trainer Aidan O'Brien as one of the best horses he has ever trained , was caught on the line at the end of the 1.25 mile contest by 17-2 chance Rewilding , given a superb driving ride by charismatic Italian jockey Frankie Dettori . Royal Ascot : 300 years of horses , hats and high society . Dettori told reporters : `` I have to say the second never gave up . It was a tremendous gallop between two great horses -- and when I got past him it was sheer joy . '' Meanwhile , O'Brien believed he had made a mistake in his horse 's preparation , saying : `` I will take responsibility for this defeat personally . `` After he won his first two races so easily I had gone easy on him . I think it was a trainer error , '' he added . `` I did n't have him fit enough for this kind of race and he 's given a good blow afterwards . I would think there 's improvement to come . '' Wednesday proved a disastrous day for the punters , with bookmakers coming out on top . Not one winning favorite triumphed , with two 11-1 shots and two 12-1 chances coming out on top . Irish jockey Richard Hughes collecting the riding honors on the day , taking the opening Jersey Stakes on Strong Suit ( 11-1 ) before booting home Best Terms to win the Queen Mary Stakes at 12-1 .
Irish horse So You Think suffers a shock defeat on second day of Royal Ascot . The 4-11 chance is caught on the line in Prince of Wales 's Stakes by Rewilding . A new poll has found that more than half (52 per cent) of people believe there will be no deal to leave the European Union if Britain votes for Brexit.