Story highlights
Bolt retains men's 100-meter title
First Olympian to win three in a row
American Justin Gatlin took silver medal
Rio de Janeiro
CNN
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It’s become the sporting spectacle of the 21st century – Usain Bolt arrives at an Olympic Games and walks away with the 100-meter gold medal.
While his days of breaking world records over the distance might have passed, he’s still able to deliver on the biggest stage.
