The world's fastest man has accomplished what no man has done before — an Olympic “triple-double.”

At the London Games Saturday, Usain Bolt anchored the Jamaicans to victory in the 4×100 relay in a world-record time of 36.84 seconds.

The win follows his first-place finishes in London in the 100- and 200-meter sprints. He also captured all three races at the 2008 Beijing Olympics.

The United States finished second in 37.04 seconds, the old world-record time set by Bolt and the Jamaicans last year. Trinidad and Tobago earned the bronze medal.

Also on the track, the Russians won gold medals in the 50-kilometer race-walk, the women's 20-kilometer race-walk, the women's high jump and the women's 800-meter race.

Elsewhere, Mexico beat Brazil, 2-1, for the gold medal in men's football , and Brazil topped the United States for the gold in women's volleyball.

In other results, France's Julie Bresset capped an extraordinary year by riding to victory in the women's mountain-bike cross country.

Russia's Sergey Kirdyapkin won a gold medal in the men's 50-kilometer walk, and Britain's Ed McKeever powered his way to gold in the inaugural men's 200-meter K-1 canoe sprint regatta.

In the medal count, the U.S. has been pulling away from China and has hit the century mark: 100 total. Russia remains in third place and Britain in fourth. The U.S. is slightly ahead of China in gold medals.