A re-cap of some of the great moments from Day 13 of the London 2012 Olympic Games as David Rudisha ignites the Olympic Stadium with a new 800m world record and Usain Bolt makes history of his own on the athletics track. Let us know your favorite moments from Day 13 in the comments section below Subscribe to the Olympic channel: Key Moments From Day 13: - Usain Bolt becomes the first athlete to win the 100m and 200m gold at two Olympic Games. - David
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