The 36-year-old Czech, who's won two Olympic titles and set the still-standing 72.28m world record in the decade since, controlled the competition from the second round when she sent her spear sailing 66.76m. It would hold out as the winning distance in a close competition with China's Li Lingwei applying the pressure in nearly every round. Some, but not enough.
"At this stadium, I am unbeatable. There must be something in the air about London," said Spotakova, whose second Olympic crown came in this stadium.
"I cannot explain it but when I enter this stadium, I always feel so calm and relaxed. I believed I could really win it today, I was so focused and confident."