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Olympic facts: 10 things you didn't know about the 100m sprint | Olympics 2012: athletics | The Guardian
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Usain Bolt beaten in his final 100m race as Justin Gatlin surges home at the world champs | Stuff.co.nz
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Christian Coleman posts a world lead in the 100m sprint in Stanford - IAAF Diamond League 2019 - YouTube
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Rio 2016: Of the 30 fastest 100m times ever, only nine were achieved by a clean athlete - and all were run by Usain Bolt | The Independent | The Independent
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