London, Aug 06 (ANI): Justin Gatlin ruined Usain Bolt's farewell party as he won the world 100 metres title on Saturday. The 35-year-old American sparked a chorus of boos from a crowd unhappy with his doping past. A former world and Olympic champion Gatlin, who stumbled at the death to lose the 2015 world final to Bolt, timed his surge and dip to perfection to win in 9.92 seconds. Coleman took silver in 9.94 with Bolt third in 9.95. Jamaican Bolt made a terrible start but this time he could not make it up as Christian Coleman, the 21-year-old American who beat him in the semi-finals, looked set for victory. Soon after finishing the race, Gatlin was seen bowing down to pay his respect to Bolt, who was on the last run of his career.