Harry Aikines-Aryeetey won the 100m at the IAAF World Junior Championships to cement his reputation as one of Britain's brightest athletics talents.
Aikines-Aryeetey looks destined for great things at senior level
The 17-year-old claimed gold in a season's best time of 10.37 seconds to secure Great Britain's first medal of the championships in Beijing.
Britain's Wade Bennett-Jackson finished in sixth place in 10.45secs.
"I'm over the moon and just want to talk about it with everyone," said Aikines-Aryeetey.
"After my semi-final I just wanted to get out there and finish the business."
Canada's Justyn Warner and Jamaica's Yohan Blake finished in second and third places.
Aikines-Aryeetey won the 100m-200m sprint double at the World Youth Championships last year.
Another richly talented British athlete to shine in Beijing on Wednesday was Martyn Rooney. The 400m star qualified for Thursday's final with the fastest semi-final time.