Olympic champion David Rudisha has claimed his second 800m world title with success at the Bird's Nest Stadium in Beijing.
The Kenyan entered the race as favourite and put in a dominant performance, leading all the way to finish in a time of 1:45.84 at the World Athletics Championships.
Rudisha has suffered an injury-ravaged three years since his world-record time at the London Olympics three years ago, while he was only 14th fastest overall in the semi-finals but qualified due to winning his heat.
Poland's Adam Kszczot came home in second place with a time of 1:46.08 to claim silver, but he never truly troubled the world champion.
Amel Tuka of Bosnia and Herzegovina, meanwhile, won his country's first ever medal at a World Championships by finishing in third, edging out Ferguson Cheruiyot Rotich of Kenya.