Adam Gemili has recorded a personal best time to win the 100 metres sprint event at the World Junior Championships in Barcelona.
The 18-year-old Londoner, who ran the semi-final in 10.18 seconds, finished the final in 10.05s to break the championship record.
Aaron Ernest from the United States was second - 0.12s behind Gemili - while Jamaica's Odean Skeen came third in a time of 10.28s.
A delighted Gemili told www.uka.org.uk: "I want to thank my mum, my dad, my sister, my coach, my training group and the whole of the GB team, the support they have given me is amazing, especially in the last few days.
"I just told myself to stay relaxed and stay focused. I am not going to lie, I was nervous before the race, it's a World Junior final, it's in this stadium in Barcelona, how can you not be nervous? But you need to use your nerves in a good way, try to use them to help you run and I did it.
"This is a massive stepping stone for the Olympics. If I had only made the final, it would have been a great achievement, to win makes it huge."
Gemili has been selected for the 100m and 4x100m events at this summer's London Olympics.
