Moscow, Aug 17 (IANS): Sprint king Usain Bolt, who is chasing a historic three-peat, has promised to let everything out on the track in Saturday night’s 200m final here at the 14th IAAF World Athletics Championships.

Bolt, who last Saturday regained his 100m world title, lost in Daegu because he false started in the final, had two easy rounds of 200m Friday, reports CMC.

However, the world sprint double record holder, said he always feels tired after the semi-finals of the 200m, but told journalists, "I will be flushing my legs out with some ice bath, have a good night rest and I should be okay (for the final)."

Bolt is seeking to become the first man to win, not only three 200m titles, but also at consecutive championships.

“I am going out there to run my hardest, hopefully everything will work out,” he said, while adding “I am not worried, I'm never really worried in a final, but never take anyone lightly.”

“I am definitely going out there to run. I am not going to hold anything back. I am going to push myself and see how fast I can run,” he promised.

After the heats in the morning, Bolt said he is not a morning person, but added “I am feeling good” and that "the race was easy”.

Later in the semi-finals, Bolt again took it very easy, but this time just finished ahead of South Africa’s Anaso Jobodwana, who looked desperate for the win. Bolt looked across on Jobodwana as they almost crossed the line together - 20.12 to 20.13.

Bolt said even though it was the semi-final, he didn't want to lose.

“At the last minute when I was slowing down I heard the South African on my inside, I didn’t want to lose the race, so I just picked up then,” he said.