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Britain’s Charlotte DuJardin, aboard Valegro, had the top individual score of 83.663. (Alex Livesey/Getty Images)

Britain’s Charlotte DuJardin, aboard Valegro, had the top individual score of 83.663. (Alex Livesey/Getty Images)

LONDON, ENGLAND – AUGUST 03: Charlotte Dujardin of Great Britain riding Valegro competes in the Dressage Grand Prix on Day 7 of the London 2012 Olympic Games at Greenwich Park on August 3, 2012 in London, England. (Photo by Alex Livesey/Getty Images)