SPRINT sensation Usain Bolt has set his sights on running the 100m in 9.4 seconds after shattering the world record yet again.<br /><br />The Jamaican obliterated the previous best time, which he set at last year’s Beijing Olympics, by the unprecedented margin of 0.11 seconds at the World Championships in Berlin on Sunday.<br /><br />And now the 22-year-old, who has broken the record three times, is confident he can go on improving in years to come.<br /><br />“I think it will stop at 9.4 but you never know,” he said. “I don’t run for world records. I’ll just keep on working.”<br /><br />Bolt also holds the 200m record, set during his triple gold-winning blitz in Beijing, but does not expect to improve on that in Berlin, where the heats start today.<br /><br />“I doubt I’m going to get the world record in the 200m,” he added. “I’m just going to do my best like I always do.”<br /><br />Bolt will not face competition from Dwain Chambers in the 200m, after the Briton withdrew yesterday with a calf injury.<br /><br />However British duo Marilyn Okoro and Jenny Meadows will be in action today, in the women’s 800m final. Okoro ran a controlled race to take second place in her semi-final, while Meadows impressed by chasing down champion Janeth Jepkosgei on the home straight, also coming second.