Track & Field at the London 2012 Olympics (146 images)

Great Britain's Mo Farah bites his gold medal after winning the Men's 5000 metres final on the ninth day of the Athletics in the Olympics stadium at the London 2012 Summer Olympics on August 11, 2012 in London. UPI/Hugo Philpott

Sanya Richards-Ross of the USA celebrates winning the Women's 4 x 400 relay in world record time at the London 2012 Summer Olympics on August 11, 2012 in London. UPI/Terry Schmitt

Sanya Richards-Ross of the USA celebrates winning the Women's 4 x 400 relay in world record time at the London 2012 Summer Olympics on August 11, 2012 in London. UPI/Terry Schmitt

Great Britain's Mo Farah raises his arms as he wins the Men's 5000 metres final on the ninth day of the Athletics in the Olympics stadium at the London 2012 Summer Olympics on August 11, 2012 in London. UPI/Hugo Philpott