China's fastest runner: Su Bingtian, 100m speed 9.83 seconds; The fastest runner in the United States: Tyson Gaye, 9.69 seconds in 100 meters; Jamaica's fastest runner: Usain Bolt, hundred

China's fastest runner: Su Bingtian, 100m speed 9.83 seconds;

Fastest runner in the United States: Tyson Gaye, 100m speed 9.69 seconds;

Fastest runner in Jamaica: Usain Bolt, 100m speed 9.58 seconds;

Japan's fastest runner: Ryota Yamaga, 9.95 seconds at 100 meters;

South Korea's fastest runner, Kim Kok Young, 10.07 seconds at 100 meters;

Britain's fastest runner: Zane Hughes, 9.83 seconds at 100m;

Fastest runner in France: Vicourt, 100m speed 9.86 seconds;

Germany's fastest runner, Amin Hari, 10 seconds at 10 meters;

Jamaica's second-fastest runner, Blake, 9.69 seconds at 100 meters;

I have to say that Jamaicans are too talented in sprinting, so small a country can compete with any country, even the United States is not an opponent, in addition to the world record of 9.58 seconds held by Usain Bolt, the world's second best time of 9.69 seconds is also held by Jamaica and the United States.