Jamaica's sprint king Usain Bolt reaffirmed his status as a “legend” when he ran 19.32 to win the Olympic 200m title.

Teammates Yohan Blake was second in 19.44 while Warren Weir was third in 19.84, a personal best.

"It's wonderful. Jamaica has proven that we are the greatest sprint country," said Bolt.

"I've got nothing left to prove. I've showed the world I'm the best and, right now, I just want to enjoy myself, this is my moment. I'll never forget this. Lane seven has been good to me these past couple of days," he added.

Bolt told reporters in London that the task was difficult, but he was able to overcome, "It was hard for me, it was hard. I'm really dedicated to my work. I knew what London meant and I'm proud of myself."

A surprised and proud Blake said he could not ask for more from his first Olympic experience.

"It's great. Of course, I want to thank Usain and Jamaica. This is my first Olympics, I can't complain, this moment here is special for Jamaica. This is so good to get the one, two, three."

Twenty-two-year-old Warren Weir said it was an honour to represent his country in this way.

"All the glory goes to Jamaica. Thank you so much. This is a tremendous feeling and to have the one, two, three, words can't explain how I feel. It's just a wonderful feeling and I love London," he said.

"It's a great honour to do what my country wanted, I did it for my mother, my fiancee and everyone at home," he added.

American Wallace Spearmon finished fourth and offered his congratulations to the Jamaicans, who he described as superb.

"There was never a doubt in my mind that I wouldn't finish in the top three. Right now it is just surreal, congratulations to them, I just have to work harder," a disappointed Spearmon said.

"Those guys are on another planet right now, congratulations," he added.

Bolt has become the only man to win the 100m and 200m twice, consecutively.