BEIJING – Usain Bolt has won his fourth consecutive world 200-metre title with a display of supreme confidence in his fastest time since the Olympic final at London 2012, The Telegraph reported on Wednesday. Four days after overcoming the odds and a flying Justin Gatlin to retain his 100-metre title, Bolt ran 19.55 seconds to best his American rival in the fastest time this year and win his 10th world championship gold. Gatlin was unable to cope with the Jamaican sprinter, finishing second in 19.74 seconds. After the semi-finals, a reporter asked Gatlin what it would take to come out on top. Turning back and laughing over his shoulder, the 33-year-old said, “It takes to stay in front, that’s what it’s going to take!” Bolt and Gatlin will meet again in the 4x100m relay on Saturday night for the third installment of the World Athletics Championship 2015.