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BEIJING, CHINA - AUGUST 23:  Usain Bolt of Jamaica wins gold in the Men's 100 metres final during day two of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 23, 2015 in Beijing, China.  (Photo by Cameron Spencer/Getty Images)
BEIJING, CHINA - AUGUST 23:  Usain Bolt of Jamaica wins gold in the Men's 100 metres final during day two of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 23, 2015 in Beijing, China.  (Photo by Cameron Spencer/Getty Images)

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Bolt beats Gatlin at World Athletics Championships

Usain Bolt won the 100m sprint at the 2015 World Athletics Championships in Beijing on Sunday.

Bolt beats Gatlin at World Athletics Championships

Usain Bolt won the 100m sprint at the 2015 World Athletics Championships in Beijing on Sunday.