Following victories in the 100 and 200m for Usain Bolt, a clean sweep in the women’s 100m and gold in the 400m hurdles for Melanie Walker, Campbell-Brown powered to victory in the Bird’s Nest Stadium in a new personal best of 21.74 seconds.
Athens runner-up Allyson Felix of American again had to settle for silver in 21.93secs with another Jamaican, Kerron Stewart, claiming the bronze.
Campbell-Brown admitted the success of her team-mates had increased the pressure, saying: “There was some pressure, there was a lot of motivation from my team, but fear is not something I bring to the track.
“Jamaica’s doing very well, I’m just happy for everybody.”
Felix added: “I’m not surprised by (Jamaica’s success), they are dominating it and running well. But I am disappointed. I expected more from myself.
“I just have to pick myself up from here and go forward. The start was bad, the lane was bad and I knew I should have been stronger.”
Meanwhile, Barbora Spotakova of the Czech Republic snatched gold with the penultimate throw of the women’s javelin, a personal best of 71.42m taking her ahead of long-time leader Maria Abakumova of Russia (70.78m). Germany’s Christina Obergfoll took bronze.
There was a major shock in the men’s 800m as defending champion Yuriy Borzakovskiy failed to qualify for the final.
World champion Alfred Yego of Kenya was the fastest qualifier in 1:44.73.
In the men’s decathlon, American Bryan Clay leads after five of the 10 disciplines, 88 points ahead of Andrei Krauchanka of Belarus with American Trey Hardee third five points back.