Jamaican Usain Bolt left his rivals trailing to win gold in the Olympic 100m final with a new world record.
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 of Trinidad and Tobago was second while American Walter Dix came third but they were well adrift.
"My one aim was just to be a champion. That is what I came here to do," said the 21-year-old Bolt.
"I told you I was going to be number one and I did just that. I got a great start. I was getting good starts all the way up to the final. I was getting better and better. I wasn't bragging... when I thought I had the field covered I was celebrating, it was crazy - phenomenal."
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