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Usain Bolt: Jamaica smash world record for astonishing 4x100m relay | Daily Mail Online
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Usain Bolt caps Olympic triple trifecta; U.S. women's relay runs to 4x100 gold - The Washington Post
Colorsport 1972 Munich Olympics - Men's 4x100m Relay: Amazon.co.uk: Kitchen & Home
Jamaica Break Men's 4x100m World Record - London 2012 Olympics - YouTube
Usain Bolt's final race: Tickets go on sale for grand finale at London 2017 Athletics World Championships | London Evening Standard | Evening Standard
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U.S. women's 4x100 relay sets the world record straight - The Washington Post
Spearman Ogrodnikova ranked second on the golden stirrup, and Vetter threw a distance of 94 meters
