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http://www.iaaf.org/news/kind=100/newsid=54451.html
USA’s Tyson Gay produced a blistering display to lower his American 100 metres record and power past early leader Jamaica’s Asafa Powell and improve on the 9.71sec record he set on the heels of Usain Bolt in Berlin, winning in 9.69 seconds (+2.0 m/s). Powell finished a well beaten second in 9.85 with American Darvis Patton, third, 9.89, which equalled his PB. Nester Carter of Jamaica was fourth in 9.91 (PB). Gay’s run was the second-fastest of all-time equalling the World record clocking that Usain Bolt achieved when winning the Olympic gold in Beijing. Gay's previous US record of 9.71 was achieved when winning the World Championships silver medal behind Bolt last month, the Jamaican improving the World record to 9.58 on that occasion to win the World title.