Jamaica 's Usain Bolt is officially the fastest man on the planet as he set a new 100 meters world record of 9.72 seconds at an international meeting in New York . Jamaica 's Usain Bolt sets 100m world record of 9.72 seconds in New York . Fellow-Jamaican Asafa Powell held the previous world record of 9.74 seconds . Comment:
Jamaica 's Usain Bolt sets 100m world record of 9.72 seconds in New York . Fellow-Jamaican Asafa Powell held the previous world record of 9.74 seconds . Comment: