Lyles wins 100m gold by five thousandths of a second

After all the talk and all the hype, Noah Lyles duly delivered when it mattered most when he won a superlative Olympic 100 metres final by five thousandths of a second on Sunday to give the United States the title for the first time in 20 years.

In the most competitive final of all time, there was a blanket finish, with the stadium scoreboard initially flashing a photo to separate the first seven athletes and Lyles believing he had lost.

He was then confirmed him as the winner in a personal best 9.79 seconds, the same time as Jamaica's Kishane Thompson, but ahead by the width of a vest.

If the race had been 99 metres Thompson would have been celebrating a fourth Jamaican win in five Olympics, but fast-finishing Lyles kept his form superbly and timed his dip expertly to add Olympic gold to his world title.

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He ripped his bib name from his shirt and held it aloft with his red, white and blue varnished fingernails, announcing himself, as he had always promised he would be, as the fastest man in the world.

"It's the one I wanted, it's the hard battle, it's the amazing opponents," said Lyles, the first American Olympic 100m champion since Justin Gatlin in 2004.

"Everybody came prepared for the fight and I wanted to prove that I'm the man among all of them, I'm the wolf among wolves."

It was the first time eight men have broken 10 seconds in a wind-legal 100 metres race.