DAEGU, South Korea, Sept. 3 -- Usain Bolt of Jamaica, the world's fastest man, retained his world title in the men's 200m with 19.40 seconds on Saturday night at the Daegu world championships.

"I feel great. I wasn't running angry, I was running hard just to say to fans sorry about the 100 meters. I came out here to do my best and prove to them," Bolt told reporters after the race.

The 25-year-old Jamaican, obviously afraid of a false start again like in the 100m final on Sunday, was the last one to set off after the starting gun fire. His reaction time of 0.193 seconds is the longest among the eight sprinters in the 200m final.

The fastest reaction came from Rondel Sorrillo of Trinidad and Tobago, who took off in 0.122 seconds. He finished seventh.

Though slowly to start, Bolt said he did not panic. His winning mark is the world leading time of 2011 in the men's 200m. The previous one also came from him, at 19.86.

And in the human history of the men's 200m, only Bolt and former the world's fastest man Michael Johnson of the United States have ever run faster than 19.40.

Bolt has achieved sub-19.40 marks twice -- one in Berlin in 2009 when he created the world record of 19.19 and this time in Daegu. Johnson ran 19.32 in August of 1996.

"19.40 for me -- it is a good time. I am not in my best shape, but it is all about fun and enjoyment. I am happy with my time," he said.

Walter Dix of the United States, who had taken silver in the men's 100m final on Sunday night, finished second in 19.70. The time is his personal best of 2011.

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