ZURICH (AFP) - Jamaican treble world and Olympic champion Usain Bolt looked in trouble before pegging back compatriot Asafa Powell to win the 100 metres at the Golden League meeting here on Friday. Bolt, who set new world records in the 100 and 200m (9.58 and 19.19 seconds) at the world championships in Berlin, was trailing Powell with 25 metres to go but put on the afterburners to ensure victory. Bolt suffered the slowest start of all nine sprinters and seemed to lack his normal languid style coming out of the crucial 40m mark. The towering Jamaican eventually clocked 9.81sec with Powell - who equalled a then-world record of 9.77sec in Zurich three years ago - at 0.07sec. "It was alright," Bolt said. "I would say this was a shaky race. My body was sitting at the start. "I was a little bit tired through the race. But all things considered the time is not bad. At the end I needed to pick up my speed as my body did not respond well to the race." Powell said his second place had given him more confidence that he could regain his winning streak of a couple of years ago. "The race gives me a lot of assurance that I can win races," he said. "I just need to work out the last part of the race. Now I know that I can also beat Usain when everything works out fine for me." American Darvis Patton was third in a season's best of 9.95sec with compatriot Michael Rodgers also ducking under 10sec.