British sprint hope Adam Gemili clocked a personal best of 10.05 seconds to win the world junior 100 metres title in Barcelona late Wednesday. The 18-year-old former footballer’s time was a personal best and the second fastest run by a European athlete this year after the 10.04secs clocked by France’s Christophe Lemaitre in Rome in May. Gemili came home 0.12secs ahead of Aaron Ernest from the United States while Jamaica’s Odean Skeen came third in a time of 10.28secs. The Londoner, who has emerged onto the international scene in the last few months, has already made the British Olympic team for the 100 metres and the 4×100 metres relay.