Usain Bolt powered to a new world record as he produced a stunning run in the Olympic 100m final.

Bolt was well clear at 60m and although he eased down and started to celebrate 15 metres from the line he still set a new mark of 9.69 seconds.

Richard Thompson finished second while American Walter Dix came third but they were yards behind the Jamaican.

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http://news.bbc.co.uk/sport1/hi/olym...cs/7565203.stm

That was an incredible race to watch.