to start right now is that Justin Gatlin paid him off, so that’s what I’m going with. But I’m all right so it’s all good.”
Bolt’s American rival quickly shot back: “I want my money back, he didn’t complete the job!”
Gatlin, meanwhile, said his age had showed in the race.
“I feel tired. Going through three 100s and three 200s is taxing on the body,” he said.
“I’m the oldest person in the field and am still running and running pretty well. To be able to run 9.74sec is a really good showing.
“I gave it all I could give.”
Huge cheers greeted Bolt, wearing lycra shorts and singlet in the green, gold and black colours of Jamaica and placed in lane six, with Gatlin on his inside in lane four.
Applause also rang out for Gatlin, in a red one-piece suit, as the stadium comperes built up a boxing-match atmosphere at the packed Bird’s Nest.
The American, as in the 100m, suffered from a slower start than Bolt, who shot out of his blocks. Gatlin, a renowned fast starter who hasn’t lost over 200m since 2013 and has set personal best of 19.57sec this season, looked threatening coming off the bend.
But sandwiched between Britain’s Zharnel Hughes and Jobodwana, Bolt, in fult tilt after an electrifying bend, responded by moving into his famed “drive phase”, unleashing the full power from his long legs.
Unlike the 100m, when it came down to one-hundredth of a second to separate Bolt from Gatlin, there was a clear gap this time.
And Bolt knew it, thumbing himself in the chest as he crossed the line to complete a double many thought was in doubt when he missed six weeks of competitive action with pelvic pain.
Gatlin, in the form of his life at the age of 33, previously won world 200m gold in Helsinki before testing positive for testosterone and serving a doping ban between 2006-2010, an enforced rest he credits with extending his career.
Athletics has been mired in doping controversies, but Bolt, one of track and field’s most tested stars, again stepped up to the mark to boost the sport’s credibility and also cement his legendary status.
Meanwhile, Allyson Felix justified her step-up to the 400 metres with a convincing world championships victory which helped send the misfiring United States team soaring up the medals table.
Felix, the most decorated female athlete in history based around her 200m and relay expertise, clocked a blistering time of 49.26 seconds, the best in the world this year.
Shaunae Miller of the Bahamas claimed silver in a personal best of 49.67sec, with Jamaica’s Shericka Jackson taking bronze (49.99).
Felix, 29, has three world 200m titles to her name and is the reigning Olympic champion over the shorter distance, having previously bagged silver at the 2004 and 2008 Games.
Olympic champion Christian Taylor produced the second longest triple jump in history as he won the world title with a huge leap of 18.21m.
The Dutch-based American left it late before nailing the big jump on his sixth and final attempt to add to the world championship gold he won in 2011.