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LONDON, ENGLAND - AUGUST 04: Jessica Ennis of Great Britain crosses the line during the Women's Heptathlon 800m to win overall gold on Day 8 of the London 2012 Olympic Games at Olympic Stadium on August 4, 2012 in London, England. (Photo by Stu Forster/Getty Images)

LONDON, ENGLAND - AUGUST 04:  Jessica Ennis of Great Britain crosses the line during the Women's Heptathlon 800m to win overall gold  on Day 8 of the London 2012 Olympic Games at Olympic Stadium on August 4, 2012 in London, England.  (Photo by Stu Forster/Getty Images)