Amazingly fast sprinter Jamaican sprinter Usain Bolt has broken his own 100 meter record at the World Championships in Berlin. He ran the 100-meter dash in just 9.58 seconds. Take a look:
Sprinter Usain Bolt ran to victory in a 100-meter race in 9.77 seconds in Ostrava, Czech Republic. The AP says a 4.7 mph tail wind helped out Usain Bolt. Obviously, the tail wind would have helped out the other runners too. Usain Bolt holds the 100-meter world record with a 9.69 second sprint.
