LONDON - As far as Usain Bolt is concerned, it's a done deal.

"I'm a legend now," he said.

But these Olympics aren't quite finished. And neither is he.

With the 200-meter gold medal in his pocket after a winning run of 19.32 seconds Thursday, The World's Fastest Man now gets ready for the 4x100 relay. If he can lead the Jamaicans to a victory there, he'll be 3 for 3 at these Olympics, same way he was in Beijing four years ago.

He'll likely get a day off today for the preliminaries, then head back to the track Saturday for the final - his last chance to set a world record, the only thing to elude him over a very fast week.

The relay mark is 37.10 seconds, the third of three records Bolt set, or helped set, at the Beijing Games.

"I think there's a possibility," Bolt said. "But you can never really say it, because it's a relay and there's a baton. You never know. But for me, we're going to go out, enjoy ourselves, run fast as possible. It would be a good way to close the show again."

What a show he put on Thursday.

Bolt opened the night, during introductions, by giving a royal wave to the 80,000 fans at Olympic Stadium on hand to see some history.

Then, he ran a race fit for a king.

Burning off the starting line, he took an early lead, then powered around the curve. By the time he reached the straightaway, only Jamaican teammate Yohan Blake had any chance to catch him. Blake actually closed the gap for a moment, but then Bolt reached back and found that fastest gear - the one that has helped him become the first man to win the Olympic 100-200 double twice.

Blake finished second in 19.44 seconds and Warren Weir completed the Jamaican sweep, winning bronze in 19.84.

"The guy is just on another planet right now," said American Wallace Spearmon, who finished fourth.

While Bolt won his fifth career gold on the track, the Americans were piling them up in other corners of the stadium.

They went 1-2 in the decathlon (Ashton Eaton and Trey Hardee) and triple jump (Christian Taylor and Will Clay), raising the U.S. total to 24 medals, one more than what they won in Beijing, with three days to go.

"It's infectious," U.S. men's coach Andrew Valmon said. "When you think about coming in, we had one team meeting. We made it about the athletes and talked about what we needed to do, heard the message one time, embraced it and took on the challenge."

There was one world record established: David Rudisha of Kenya won the 800 meters in 1 minute 40.91 seconds, improving his own standard by 0.10.

Hoping to hone in on a little slice of the Bolt magic, Rudisha served up the prospect of a showdown over 400 meters against the Jamaican, who used to run that distance but abandoned it because it was too much of a grind.

Almost single-handedly, Bolt has helped track transform itself from a dying sport to one with a singular, smiling, worldwide star.

He turns 26 this month, however, and didn't sound completely sold on sticking around through the Rio Olympics in 2016.

"It's going to be a hard mission," he said.

But before he worries about that, there is more business to take care of at these Olympics.

"Tonight, all I've got to do is go home and rest," he said. "I've got the 4-by-1 coming up, and after that on Saturday, I'll party like it's my birthday."