Usain Bolt

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Usain Bolt

Power 100 rank: 27
Sport: Track & Field
Age: 23
Most recent notable achievement: 3 gold medals at 2009 World Championships
Earnings: NA
Key sponsors: Puma

Why he's on the list: The fastest man in the world shattered his Beijing world records at the 2009 world championships and kept his name fresh in the minds of sports fans.