The bookies always win. But one man has been proving them wrong for four decades. In the summer of 1975 Barney Curley, a fearless and renowned gambler, masterminded one of the most spectacular gambles of all time with a racehorse called Yellow Sam. It cost the bookmakers millions of pounds. They said that it could never happen again. But in May 2010, thirty-five years after his first coup, Curley staged the ultimate multimillion pound-winning sequel. The Sure Thing tells the complete story of how he managed to organise the biggest gamble in racing history and how he then followed up with yet another audacious scheme in January 2014.