Jamaica's Shelly-Ann Fraser-Pryce dominated the rest of the field as she surged to the world 100m title in 10.71 seconds in Moscow.
The 26-year-old, who won the same title in Berlin in 2009 as well as at London 2012, was more than two-tenths quicker than second-placed Murielle Ahoure.
Defending champion Carmelita Jeter of the United States had to settle for third after an injury-hit build-up.
Her compatriot David Oliver won 110m hurdles gold - his first world crown.
Ryan Wilson, the American national champion, was closest to Oliver but a superb run from Russian Sergey Shubenkov beat Jason Richardson and denied the United States a clean sweep of the podium, to the delight of most of the Luzhniki Stadium.
After team-mate Usain Bolt's 100m victory in the previous evening's rain, Fraser-Pryce extended a run of success that is almost as remarkable in the women's equivalent.
She finished out of the medals in the 2011 World Championships in Daegu, shortly after returning from a six-month ban for a positive drugs test she claims was caused by medication she took for toothache.
But since then she has been back to her best and once she got clear around halfway, the diminutive Fraser-Pryce stretched away from her taller rivals.
In the pole vault, Frenchman Renaud Lavillenie could not convert his fantastic season's form into the one gold to have eluded him so far in his career.
The Olympic and European champion failed with his opening attempt at 5.65m and 5.82m and took three attempts to clear 5.89m.
By contrast, German Raphael Holzdeppe was faultless at all three heights and took gold on countback when both he and Lavillenie failed at 5.96m.
New Zealand's Valerie Adams became the first woman to win four straight individual world titles as she triumphed in the shot put, Germany's Christina Schwanitz taking silver.
In the hammer, Poland's Pawel Fajdek's opening effort of 81.97m proved decisive with Olympic champion Krisztian Pars's run of 23 consecutive victories in the event, which began in early June 2012, coming to an end.