BERLIN (AP):

Barely an hour after shattering his 100-metre world record for a First-World title, Usain Bolt was stretching and jogging at the Olympic Stadium.

After all, one year ago, he followed up such a double at Beijing Bird's Nest stadium with two more golds and two more world records - in the 200 and sprint relays.

Few at Berlin's Olympic Stadium will be expecting anything less.

Even though he had just turned days of hyperbole into an understatement again by slashing .11 second off his record to bring it to 9.58 on Sunday, even Bolt is among the doubters he can turn Berlin into a second Beijing.

I doubt it

"I doubt I will get a world record in the 200," the Jamaican said.

Looking at repeats of Sunday's legendary run in the Olympic Stadium might change his mind.

Running full-out in ideal conditions and against the toughest competition possible for the first time in his 22 years, Bolt blew away his own world record and made rival Tyson Gay seem slow despite setting a US record of 9.71 seconds, the third-fastest time in history.

It was the biggest increase in the record since electronic time was introduced in 1968. After Jim Hines ran 9.95 at the 1968 Mexico City Olympics, it took 28 years to shave another .11 second, as Donovan Bailey clocked 9.84 in 1996.

Bolt did the same in 12 months.

After taking away Gay's first title at the Worlds, he had been expecting the rivalry to get even more intense by the time of the 200 heats today.

"It is going to be even more difficult because I just took Tyson's 100 metres champion title," Bolt said. "He is not going to be smiling with me."

Gay's withdrawal

That was before Gay announced his withdrawal from the event yesterday, citing a groin injury that got worse.

Aches and problems is not Bolt's style of running. Everything is free-moving.

When Gay kept talking to himself to instil confidence ahead of the 100m race, Bolt was shadowboxing with Asafa Powell and making sure his smile showed incessantly on the three huge stadium screens.

That will not change the coming day. He has one task ahead of him.

"It is going out there and run my heart out," Bolt said. "It is going to be fun."