Frankie Dettori after leaping from ex-racehorse Monsignor, whilst carrying the Olympic Flame around the parade ring at Ascot Racecourse, Ascot, England Tuesday July 10, 2012. (AP)

This image made availalbe by LOCOG shows jockey Frankie Dettori riding ex-racehorse Monsignor to carry the Olympic Flame around the parade ring at Ascot Racecourse (AP)

Frankie Dettori leaping from ex-racehorse Monsignor, after carrying the Olympic Flame around the parade ring at Ascot Racecourse. (AP)

Britain's Queen Elizabeth II and Prince Philip look at the Olympic Flame at Windsor Castle, Windsor. (AP)

Britain's Queen Elizabeth II looks at the Olympic Flame at Windsor Castle, Windsor. (AP)

Britain's Queen Elizabeth II, second right, her husband Prince Philip, center, and London 2012 Chairman Sebastian Coe, right, watch after seventy four year-old Olympic torch bearer Gina Macgregor, second left, handed the Olympic Flame onto Phil Wells. (AP)

Queen Elizabeth II her husband Prince Philip and Gina Macgregor, second left, watch as torch bearer Phil Wells, left, leaves carrying the Olympic flame at Windsor Castle. (AP)

Queen Elizabeth II, second left, her husband Prince Philip, second right, London 2012 Chairman Sebastian Coe, right, and seventy four year-old Olympic torch bearer Gina Macgregor, left, watch as torch bearer Phil Wells, unseen, leaves carrying the Olympic flame at Windsor Castle. (AP)

This image made available by LOCOG shows Queen Elizabeth II, second right, and the Duke of Edinburgh watching the Torch Kiss as Torchbearer 073 Gina Macgregor, right, passes the Olympic Flame to Torchbearer 074 Phillip Wells, left, outside Windsor Castle. (AP)

Queen Elizabeth II, Prince Philip, London 2012 Chairman Sebastian Coe, right, and Gina Macgregor, left, at Windsor Castle. (AP)

Olympic torchbearer Gina Macgregor runs through heavy rain carrying the Olympic flame as she enters Windsor Castle. (AP)

Olympic torchbearer Gina Macgregor runs through heavy rain carrying the Olympic flame at Windsor Castle. (AP)

This image provided by LOCOG shows Torchbearer 077 Alan Corbishley carrying the Olympic Flame on the Torch Relay leg down Long Walk after leaving Windsor Castle. (AP)

This image made available by LOCOG shows Torchbearer 133 Malcolm Fretter carrying the Olympic Flame on the Torch Relay leg through Oxford. (AP)