LONDON - Jamaica’s Shelly-Ann Fraser-Pryce proved herself the sprint queen of the track again when she retained her Olympic 100 metres crown. Fraser-Pryce, securing what could be the first leg of a Jamaican double, clocked 10.75 seconds to cap a frantic night of action. American Carmelita Jeter grabbed silver in 10.78 and Veronica Campbell-Brown of Jamaica claimed bronze in 10.81.American Gail Devers was the last to retain the 100m title when following up Barcelona triumph with victory in Atlanta in 1996. Jamaica upstaged the USA by sealing a clean sweep of the podium in 2008 but Jeter, the 2011 world champion and second fastest woman of all time, restored American pride by pushing Fraser-Pryce all the way. She said afterwards: ‘It’s completely different to Beijing because there I was inexperienced. I was young and I never believed I could win.