Noah Lyles launched himself from near the back of the field to beat fellow American Christian Coleman by just 0.006secs and win the 100 metres at the Shanghai Diamond League on Saturday. Lyles's blistering 9.86sec was the best time this year and a personal best, and lays down a marker ahead of the world championships in the autumn and the Tokyo Olympics next summer. The 21-year-old, part of a new generation of American sprinters, ducked to the line with a glance to his left to Coleman. A photo finish confirmed Lyles had won.

Third was South Africa's Akani Simbine and fourth last year's Shanghai victor, Britain's Reece Prescod. It is early days in the season, but Lyles and his rivals are already eyeing the Doha world championships in September while the 2020 Tokyo Games also loom. Lyles, the 200m Diamond trophy winner last year, celebrated wildly and said: "In pre-season I'd taken a couple of losses, a couple of second places, even on my home track, so I really wanted to come out here and told my coach I wanted to do something.