Usain Bolt's world record in the under-17 400 meter dash has been broken after standing for 22 years. Nickecoy Bramwell, a Jamaican teenager, set a new record on Friday at the 51st Carifta Games ...

Usain Bolt's Under-17s 400m world record ... Track legend Usain Bolt, who still reigns as the world record holder for the fastest 100m dash with a time of 9.58 seconds set in 2009, retired ...