Only when the running stopped and the picture-taking began did Usain Bolt finally meet his match.
Bolt blew past Justin Gatlin and everyone else Thursday night in the 200 meters to win his 10th career gold medal at the world championships.
What finally upended the 6-foot-5 Jamaican was a multitasking cameraman riding a two-wheeled scooter while videotaping Bolt's victory lap. The scooter ran over the outcropping of a metal railing bolted to the edge of the track and bobbled off course then slammed into the back of the fastest two legs on the planet.
Bolt's legs came out from under him and he went down hard and landed on his backside. Then, smooth as silk, he somersaulted backward onto his feet, jogged a few steps, and reached down to make sure his left leg was OK.
He was no worse for wear reporting just a few scrapes but figured he'd try to make the evening at least a little more interesting.
"The rumor I'm trying to start right now is that Justin Gatlin paid him off," Bolt said, while sitting next to Gatlin in the medalists' news conference.
Gatlin's response: "I want my money back. He didn't complete the job."
Indeed, it may take more than just a motivated opponent to finish off Bolt, who now has five gold medals at the Bird's Nest, including the three he took at the 2008 Beijing Olympics when he set world records in the 100, 200 and 4x100 relay.
The split-second scare with the scooter provided what Bolt's season-best 19.55 seconds on the track did not.
This was billed as the second round of the Bolt vs. Gatlin series that produced the champion's grittiest win four nights earlier. Bolt's .01-second victory in the 100 came despite a year's worth of injuries and off-form running that continued all the way through the semifinals.
Running out of Lane 6, Bolt got off to a good start and worked smoothly into the curve, making up the lag to the runners to his outside and gathering steam as he headed into the turn. Leading at the halfway point, he opened a three-body-length lead over Gatlin early in the stretch, and the last 50 meters were simply for showing off.
Bolt coasted in and still won by .19 seconds. The winner used his thumbs to point at himself as he crossed the finish line and flashed his index finger: He's No. 1 just in case anyone had any doubts.
"What I really celebrated was, Justin Gatlin said earlier in the week that he was going to bring out something special for the 200 meters," Bolt said. "I was like, 'You don't talk about my 200 meters like that.'"
Gatlin came into world championships dominating the sprints while Bolt was stuck on the sideline. The American was a favorite in the 100 meters, and Bolt took umbrage to the idea that Gatlin's stumble over the last 15 meters gave that race away.
"Disrespectful," Bolt called that notion. "I came out here and got it done."
Once the 200-meter heats began, Bolt started getting stronger and Gatlin, by his own admission, started feeling tired.
"I've beaten him once before, and I hope to do it again," Gatlin said of a .01-second victory at a meet in Rome in 2013. "He's such a showman. You've got to give it to the guy for staying at the level he stays at. That's hard to do."
Gatlin's silver added to gold medals won by two Americans Christian Taylor in the triple jump and Allyson Felix in the 400. Anita Wlodarczyk of Poland won the women's hammer throw with a championship-record toss of 80.85 meters.
When Felix crossed the line, she tied Bolt for the most gold medals at the world championships with nine. That lasted all of about 10 minutes until Bolt took No. 10 in the night's final race.
Both sprinters are pointing toward Rio de Janeiro, where the Olympics are only 343 days away.
Something to think about: Bolt guessed if he'd pushed hard through the line Thursday night, he could have finished in the low 19.3s. He first got there at the 2008 Olympics, where he ran 19.30 to break Michael Johnson's 12-year-old world record. Bolt has since improved that to 19.19.
"But one of my goals is to run under 19 seconds," he said. "So if I want to run that, I have to really push myself next season."
For the short term, his goal is to grab another gold in the 4x100 relay on Saturday then get out of Beijing unscathed.
After Bolt leaped up from his scary fall, he jogged back to the scooter driver to make sure he, too, was OK.