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  — 

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.

Bolt does his "Lightening Bolt' pose as he celebrates winning the 100 meters.