Noah Lyles of the United States won an enthralling and dramatic men's Olympic men's 100 metres final by fractions of a second in a time of 9.79 on Sunday.

Kishane Thompson of Jamaica took the silver in the same time and Fred Kerley of the US claimed bronze in 9.81.

It was the first time an American had won the title since Justin Gatlin in 2004 and Lyles raised his arms in triumph to wild cheers from the packed crowd at the Stade de France as his name appeared at the top of the standings.

He made a slower start out of the blocks than his rivals but accelerated through the finish to clinch victory by five thousandths of a second.

Ukraine's Yaroslava Mahuchikh completed her trophy cabinet with the women's Olympic high jump gold medal, clearing 2.00 metres in front of an adoring crowd at the Stade de France.

Australian Nicola Olyslagers took silver and Ukraine's Iryna Gerashchenko and Australian Eleanor Patterson shared the bronze.

Mahuchikh fled her home in Dnipro after Russia's attack on Ukraine in 2022 but has kept her competitive career going and claimed Olympic gold weeks after breaking a world record that had stood since 1987 with a leap of 2.10m.

The world champion cleared the winning height on her first attempt and took the gold over the Australian by virtue of having fewer failures, bowing to the crowd as she took one shot at clearing 2.04m but knocked the bar down.

And Canada's Ethan Katzberg won gold in the men's hammer throw, cementing his dominance of the discipline after becoming the youngest ever world champion last year.

Katzberg, 22, who cuts a distinctive figure with his moustache and long curly hair, asserted himself with a first throw of 84.12 metres, and none of his rivals could respond.

Hungary's Bence Halasz won silver with 79.97 and Ukraine's Mykhaylo Kokhan won bronze with 79.39. (Reuters)